VL813-Q7

USB 3.0 4-port hub controller, 5Gbps SuperSpeed, integrated PHY+DC-DC+BC1.2, QFN-76, VIA Labs VL813

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Manufacturer Part：

VL813-Q7

Package：

QFN-76 (Q7) - 9.0 x 9.0 x 0.85 mm, 0.4mm pitch, exposed thermal pad

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Description

Product Overview

The VL813-Q7 is a SuperSpeed USB 3.0 hub controller from VIA Labs, Inc. (VLI), a leading supplier of USB connectivity solutions. The VL813 is a 4-port USB 3.0 hub controller that integrates all necessary functions for a USB 3.0 hub implementation, including SuperSpeed (5 Gbps), High-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps) support on both upstream and downstream ports.

Packaged in a 76-pin QFN (Q7 suffix) package measuring 9 mm × 9 mm with 0.4 mm pitch, the VL813 features VIA Labs’ in-house designed USB 3.0 PHY with advanced CMOS technology for low power consumption and high signal integrity. The device supports full USB 3.0 hub compliance including hub class requests, multiple TT (Transaction Translator) architecture for USB 2.0 traffic, and various low-power management modes including U0, U1, U2, U3, and selective suspend.

The VL813-Q7 integrates a 5V to 3.3V/1.2V DC-DC converter, reducing external component count and BOM cost. It also features integrated battery charging (BC1.2) support on downstream ports, allowing connected devices to charge at higher currents when the hub is in standby or when only the charging function is needed. The device operates from a single 5V supply and supports both self-powered and bus-powered hub configurations, making it highly versatile for a wide range of USB hub applications.

Key Specifications

Parameter Value
USB Specification USB 3.0 SuperSpeed (5 Gbps)
Hub Configuration 1 upstream port + 4 downstream ports
Speed Support SuperSpeed (5Gbps), High-Speed (480Mbps), Full-Speed (12Mbps), Low-Speed (1.5Mbps)
Controller Architecture Single-chip USB 3.0 hub controller
USB PHY Integrated USB 3.0 PHY (SuperSpeed + USB 2.0)
Transaction Translator Multiple TT (Multi-TT) for full USB 2.0 bandwidth
Power Management U0, U1, U2, U3, selective suspend, USB LPM
Battery Charging BC1.2 CDP/DCP support on downstream ports
Supply Voltage 5 V (single supply, with internal regulators)
Integrated Regulators 5V to 3.3V and 5V to 1.2V DC-DC converters
Package QFN-76 (Q7), 9 x 9 mm, 0.4 mm pitch
Operating Temperature 0°C to 70°C (commercial) / –40°C to 85°C (industrial option)
Host Interface I²C/SMBus for configuration and firmware
LED Control Integrated LED indicators for port status

Features

  • USB 3.0 SuperSpeed compliant, 5 Gbps data transfer rate
  • Four downstream SuperSpeed USB 3.0 ports
  • Full backward compatibility with USB 2.0/1.1/1.0
  • Multi-TT (Transaction Translator) architecture
  • Integrated USB 3.0 PHY and USB 2.0 PHY
  • Single 5 V supply with integrated DC-DC converters
  • Integrated battery charging (BC1.2 CDP/DCP)
  • Supports both self-powered and bus-powered modes
  • Low power consumption with USB 3.0 LPM support
  • UASP (USB Attached SCSI Protocol) compatible
  • Port status LED drivers (per-port activity indicators)
  • I²C/SMBus interface for configuration and control
  • Built-in firmware with customizable PID/VID
  • Customizable with external SPI flash (optional)
  • 76-pin QFN package, 9 × 9 mm footprint
  • RoHS compliant and lead-free

Applications

  • Standalone USB 3.0 hubs and docking stations
  • Monitor and display USB hubs
  • Keyboard and monitor integrated hubs
  • Laptop and PC motherboard USB expansion
  • USB-C docks and adapters
  • External storage enclosures with hub
  • Industrial USB hubs and kiosks
  • TV and set-top box USB ports

The VL813-Q7 is a high-performance SuperSpeed USB 3.0 4-port hub controller from VIA Labs, Inc. (VLI), a fabless semiconductor company specializing in USB connectivity solutions. As one of VLI’s most popular USB 3.0 hub controllers, the VL813 provides a complete single-chip solution for adding USB 3.0 hub functionality to a wide variety of products.

The VL813 supports the full USB 3.0 SuperSpeed data rate of 5 Gbps on both the upstream and all four downstream ports. It maintains full backward compatibility with USB 2.0, USB 1.1, and USB 1.0 devices, supporting High-Speed (480Mbps), Full-Speed (12Mbps), and Low-Speed (1.5Mbps) operation. The device features a Multi-TT (Transaction Translator) architecture, which ensures that USB 2.0 devices on different downstream ports can operate at full bandwidth simultaneously, without sharing the USB 2.0 bandwidth as single-TT hubs do.

A key advantage of the VL813 is its high level of integration. The device includes VIA Labs’ proprietary in-house USB 3.0 PHY, known for low power consumption and excellent signal integrity, reducing the need for external signal conditioning components. It also integrates 5V-to-3.3V and 5V-to-1.2V DC-DC converters, allowing the entire hub to operate from a single 5V supply and minimizing the number of external power components required.

The VL813 supports USB Battery Charging Specification 1.2 (BC1.2), enabling downstream ports to charge connected devices at higher currents (up to 1.5A for DCP mode) when the system is in standby or when charging-only mode is activated. This feature is particularly valuable in docking stations, monitor hubs, and desktop hubs.

Available in a 76-pin QFN package (9mm x 9mm) with 0.4mm pitch, the VL813-Q7 provides a compact, cost-effective solution for USB 3.0 hub implementations across consumer, industrial, and computing applications.

The VL813 USB 3.0 hub controller operates through several key functional blocks:

1. USB 3.0 Upstream Port: The upstream port connects to the host computer or a higher-level hub. It handles SuperSpeed (5Gbps) traffic using differential signaling on two pairs (TX and RX). The port is fully compliant with the USB 3.0 specification including link layer, protocol layer, and hub class requests.

2. USB 3.0 Downstream Ports: Four SuperSpeed downstream ports each have their own USB 3.0 PHY. The hub controller manages the routing of SuperSpeed packets between the upstream port and the appropriate downstream port(s), handling hub-specific functions such as split transactions, broadcast, and selective suspend.

3. USB 2.0 Hub Function: Integrated within the VL813 is a complete USB 2.0 hub supporting HS/FS/LS speeds. The Multi-TT architecture provides dedicated Transaction Translators for each downstream port, preventing USB 2.0 devices from blocking each other and maintaining full bandwidth per port.

4. Hub Controller Logic: The main controller logic handles all hub-level functions including configuration, power management, port status monitoring, over-current detection, and LED control. It manages both USB 3.0 and USB 2.0 hub functions in a coordinated manner.

5. Power Management: The VL813 supports all USB 3.0 power management states (U0 active, U1/U2 low-power states, U3 suspend). It also supports USB Link Power Management (LPM) and selective suspend, allowing individual ports to enter low-power states while others remain active.

6. Integrated Regulators: Built-in DC-DC converters generate the 3.3V and 1.2V supplies needed by the internal logic and PHY from the 5V system supply. This reduces BOM cost and board space by eliminating the need for external regulators.

7. Battery Charging (BC1.2): The downstream ports support Battery Charging Specification 1.2, with both CDP (Charging Downstream Port) and DCP (Dedicated Charging Port) modes, enabling faster charging of smartphones, tablets, and other USB-charged devices.

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Group Signal Type Count Description
USB 3.0 Upstream SS_TX/RX 2 diff pairs SuperSpeed upstream transmit and receive differential pairs
USB 3.0 Downstream SS_TX/RX ×4 8 diff pairs 4 SuperSpeed downstream ports, each with TX+RX pairs
USB 2.0 Upstream DP/DM 1 diff pair USB 2.0 upstream data pair
USB 2.0 Downstream DP/DM ×4 4 diff pairs 4 USB 2.0 downstream port data pairs
Power VDD_5V multiple 5V main supply input
Power VDD_3V3 multiple 3.3V (internal LDO or external supply)
Power VDD_1V2 multiple 1.2V core supply
Ground GND multiple Ground pins and exposed thermal pad
Port Power Control PWR_EN ×4 4 Downstream port power enable outputs (to MOSFETs)
Over-Current OC# ×4 4 Over-current detection inputs (from power switches)
LED Control LED ×4 4 Port status LED driver outputs
Configuration I²C (SCL/SDA) 2 I²C/SMBus interface for configuration and FW update
Configuration SPI 4 SPI flash interface (optional, for firmware storage)
Clock XTAL_IN/OUT 2 Crystal oscillator interface (typical 25MHz or 30MHz)
Reset RESET# 1 Chip reset input (active low)
Straps CFG pins several Configuration strap pins for mode selection at power-up
BC1.2 CDP/DCP control per port Battery charging mode control signals

Note: Pin list is an abstraction based on typical USB 3.0 hub controller architecture. The 76-pin QFN package includes all USB data, power, control, and configuration pins. Exact pin assignment should refer to the official VIA Labs datasheet. Exposed thermal pad must be soldered to the ground plane for proper thermal dissipation.

  • Standalone USB Hubs: Desktop and portable USB 3.0 hubs offering 4 SuperSpeed ports for PC and Mac expansion, where the VL813’s high integration enables compact designs with minimal external components.
  • Monitor and Display Hubs: USB hubs integrated into monitors and all-in-one PCs, providing convenient side-mounted USB ports for keyboard, mouse, storage, and other peripherals.
  • Docking Stations: USB-C and USB 3.0 docking stations for laptops, where the VL813 provides downstream USB expansion alongside video, Ethernet, and charging functions.
  • Motherboard Expansion: Desktop PC motherboards and laptop mainboards using the VL813 to expand the number of available USB 3.0 ports from a single host controller.
  • External Storage Enclosures: Multi-drive USB 3.0 storage enclosures where the hub controller allows multiple drives to share a single USB connection to the host computer.
  • Industrial USB Hubs: Industrial-grade USB hubs for factory automation, data acquisition, and kiosk systems requiring reliable USB connectivity in demanding environments (industrial temperature variant).
  • Smart TV and Set-Top Boxes: Smart TVs, set-top boxes, and media players that need multiple USB ports for external storage, wireless adapters, and input devices.
  • Keyboard and Peripheral Hubs: High-end keyboards and peripheral devices with integrated USB 3.0 pass-through hubs for additional connectivity.
Manufacturer Part Number Ports USB Spec Notes
VIA Labs VL812-Q7 4 USB 3.0 Previous generation, similar feature set
VIA Labs VL817-Q7 4 USB 3.1 Gen1 Newer generation with PD support
Realtek RTL9210B – USB 3.1 USB-to-NVMe bridge, not a hub
Texas Instruments TUSB8041 4 USB 3.0 TI USB 3.0 hub controller
Microchip USB5744 4 USB 3.1 Gen1 SmartHub with battery charging
Realtek RTS5411 4 USB 3.0 Cost-effective alternative hub
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Quality Assurance

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
  • Automotive Electronics: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
  • Medical Devices: High-reliability components meet medical industry safety and compliance regulations, ensuring stable operation for medical equipment.
  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

6. After-sales Quality Guarantee

If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

Contact Us

If you have inquiries about our quality standards, inspection procedures or product certification documents, please feel free to contact us:

 

Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Shipping & Payment

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

1. Payment Terms

We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
  1. Accepted Payment Methods
  • T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
  • PayPal: Ideal for small orders, sample orders and quick payments.

  1. Settlement Currency

     

    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

  2. Bank Charges

     

    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

  3. Payment Requirements
  • Sample and small orders: Shipment will be arranged upon full payment.
  • In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.

2. Shipping & Delivery

We partner with leading global logistics providers to ensure safe and fast delivery worldwide. Relevant details are listed below:
  1. Logistics Partners
  • International Express: DHL, FedEx, UPS, TNT
  • Economy Logistics: Air freight and sea freight for large-volume cargo
  • Domestic Delivery: SF Express, Yunda Express
  1. Order Processing Time
  • In-stock items: Orders confirmed and fully paid before 14:00 (GMT+8) will be shipped on the same day. All other orders will be dispatched within 1 to 2 working days.
  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
  1. Estimated Transit Time
  • International Express: 3 – 7 working days globally
  • Air Freight: 7 – 12 working days
  • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
  1. Shipping Fee Rules
  • Shipping cost is calculated based on package weight, volume, destination and delivery method.
  • Both freight prepaid and freight collect are available. Please provide your courier account number in advance if you choose freight collect.
  • Free international express delivery is offered for large orders. Terms for long-term partners can be negotiated separately.
  1. Shipment Tracking
     

    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

3. General Order Rules & Notes

  1. MOQ & Sample Service

     

    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

  2. Packaging Standard

     

    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

4. Customs & Liability Statement

  1. Import Duties & Taxes

     

    All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

  2. Handling of Lost or Damaged Goods
  • In case of loss or severe damage during transit, please contact us within 48 hours after receiving the tracking information. We will assist you in filing a claim with the logistics provider.
  • We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.

5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@ic-vendor.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

1. One-stop Sourcing & BOM Support

We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

4. Professional Technical Support

Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

5. Sourcing for Special Components

Relying on our global supply chain network, we professionally source scarce components, obsolete parts and customized special components to efficiently solve your procurement difficulties.

6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
  • Shockproof buffer materials are added for fragile products to ensure transportation safety;
  • Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.

2. Classified Professional Packaging

  • Anti-static Packaging: Static-sensitive components such as chips, circuit boards and sensors are packaged with anti-static bags, shielding boxes and conductive foam in strict accordance with international anti-static standards to prevent static damage.
  • Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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