StarTech.com HB31C3ASDMB 3-Port USB-C Hub with SD Card Reader - USB 3.2 Gen 2 10Gbps - Bus Powered - Black/Space Gray
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Product Features
Technical Overview
This USB-C hub implements USB 3.2 Gen 2 technology (also marketed as USB 3.1 Gen 2) to achieve SuperSpeed 10Gbps data transfer rates. The host interface connects via a USB 3.1 Type-C connector that supports both power delivery and high-bandwidth data transmission without requiring external power adapters.
The integrated UHS-II SD card reader leverages SD 4.0 specifications to deliver read/write speeds up to 312Mbps, compatible with SD, SDHC, SDXC, and MMC media formats. All three USB-A ports maintain backward compatibility with USB 3.1 Gen 1, USB 3.0, and USB 2.0 devices while supporting simultaneous high-speed transfers.
Relevant factors for this section include Host Interface, UASP Support. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
This hub combines essential expansion capabilities with professional-grade construction for IT departments, creative professionals, and mobile workers who require reliable peripheral connectivity without compromising portability.
High-Speed Data Transfer
Achieve 10Gbps throughput across all USB-A ports for rapid file transfers between SSDs, external drives, and other storage devices. The UHS-II card reader accelerates photography and video workflow with 312Mbps media access speeds.
- SuperSpeed 10Gbps USB 3.2 Gen 2
- UHS-II SD 4.0 card reader
- UASP protocol support
Universal Compatibility
Driverless installation works across major operating systems including Windows, macOS, Linux, iPadOS, Chrome OS, and Android. The hub maintains full functionality with legacy USB 2.0 and 3.0 devices while optimizing performance with modern USB 3.1 peripherals.
- No additional drivers required
- Backward compatible with USB 2.0/3.0
- Works with tablets and mobile devices
Deployment / Use Cases
The HB31C3ASDMB serves as an ideal connectivity solution for modern laptops with limited USB-C ports, transforming single-port devices into fully functional workstations with expanded peripheral support.
Creative professionals benefit from the integrated UHS-II card reader for rapid photo and video transfers, while IT administrators appreciate the hub's driverless operation across diverse operating environments. The compact form factor and bus-powered design make it particularly suitable for conference room setups, mobile workstations, and educational environments where simplicity and reliability are paramount.
Mobile Workstation Expansion
Connect multiple USB devices simultaneously—including external storage, input devices, and AV adapters—while maintaining high-speed data transfer capabilities for productivity applications.
Media Workflow Acceleration
Streamline photography and videography workflows with direct UHS-II SD card access at 312Mbps, eliminating the need for separate card readers while preserving USB ports for other peripherals.
Physical Profile
The hub features a durable aluminum housing in a dual-color Black and Space Gray finish that complements modern laptop designs. With compact dimensions of approximately 4.1" x 1.8" x 0.6" (105mm x 45mm x 16mm) and lightweight construction at 6.91 oz (196 g), the device easily fits in laptop bags and travel cases. The integrated 9.8" (25 cm) host cable provides sufficient reach for comfortable positioning while maintaining a clean workspace.
- Width
- 5.70" (144.78 mm)
- Height
- 1.50" (38.10 mm)
- Weight
- 6.91 oz (196 g)
- Length
- 8.10" (205.74 mm)
What's in the Box
The package includes the complete hub assembly ready for immediate use.
Package contents include 3-Port USB-C Hub with SD Card Reader - 10Gbps, 3x USB-A. These included items support setup, installation, and immediate deployment without needing to source the core bundled accessories separately.
Highlights
- 3 USB-A 3.1 ports deliver 10Gbps data transfer speeds
- Integrated UHS-II SD card reader supports SD, SDHC, SDXC, and MMC formats
- USB 3.2 Gen 2 (USB 3.1 Gen 2) technology with UASP protocol support
- Bus-powered design requires no external power adapter
- Driverless installation across Windows, macOS, Linux, iPadOS, Chrome OS, and Android
- Durable aluminum housing in Black and Space Gray dual-color finish
- Compact form factor with 9.8" integrated host cable
- Backward compatible with USB 3.0 and USB 2.0 devices
- 2-year limited warranty with environmental compliance certifications
- Manufactured in Taiwan with EU RoHS, REACH, and WEEE compliance
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | HB31C3ASDMB |
| Brand Name | StarTech.com |
| Product Name | 3-Port USB-C Hub with SD Card Reader - 10Gbps - 3x USB-A |
| Packaged Quantity | 1 Each |
| Product Type | USB Hub/FlashCard Reader |
| Technical Information | |
| Host Interface | USB 3.1 Type C |
| Media & Performance | |
| UASP Support | Yes |
| Interfaces/Ports | |
| Total Number of USB Ports | 3 |
| Number of USB 3.1 Ports | 3 |
| Physical Characteristics | |
| Color Family | Dual Color |
| Product Color | Black,Space Gray |
| Form Factor | External |
| Height | 1.50" (38.10 mm) |
| Width | 5.70" (144.78 mm) |
| Length | 8.10" (205.74 mm) |
| Weight (Approximate) | 6.91 oz (196 g) |
| Miscellaneous | |
| Package Contents | 3-Port USB-C Hub with SD Card Reader - 10Gbps - 3x USB-A |
| Platform Supported | Linux,Mac,PC |
| Country of Origin | Taiwan |
| Environmentally Friendly | Yes |
| Environmental Certification | EU RoHS |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) 2,Registration, Evaluation, Authorization and Restriction of Chemicals (REACH),Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | 2 Year |
User Manual
FAQ
What types of memory cards does this USB-C hub support?
The integrated UHS-II card reader supports SD (Secure Digital), SDHC (SD High Capacity), SDXC (SD Extended Capacity), and MMC (Multimedia Card) formats. It utilizes SD 4.0 specifications to achieve transfer speeds up to 312Mbps, making it suitable for high-resolution photography and video workflows. The reader does not include a microSD adapter, so microSD cards require their own adapter to fit the standard SD slot.
Does this hub require external power or drivers to function?
No, the hub operates as a bus-powered device that draws power directly from your host computer's USB-C port, eliminating the need for an external power adapter. It features driverless installation across supported operating systems including Windows, macOS, Linux, iPadOS, Chrome OS, and Android, allowing plug-and-play functionality without additional software downloads.
What is the maximum data transfer speed of the USB-A ports?
The three USB-A ports support USB 3.2 Gen 2 (also marketed as USB 3.1 Gen 2) technology, delivering SuperSpeed 10Gbps data transfer rates. This enables rapid file transfers between compatible storage devices, SSDs, and peripherals. The ports maintain backward compatibility with USB 3.1 Gen 1, USB 3.0, and USB 2.0 devices, though transfer speeds will adjust to match the connected device's capabilities.
Can I use this hub with tablets or mobile devices?
Yes, the hub supports iPadOS and Android devices with USB-C ports, provided the host device supports USB host functionality. The driverless design ensures compatibility with tablets that allow peripheral connections, though specific functionality may vary depending on the host device's operating system restrictions and power delivery capabilities.
What does UASP support provide for data transfers?
UASP (USB Attached SCSI Protocol) support reduces CPU utilization during data transfers by enabling more efficient communication between the host and storage devices. This protocol decreases latency and increases throughput compared to standard USB Bulk-Only Transfer, resulting in faster file transfers and improved system responsiveness when using compatible storage devices with the hub.
What warranty and environmental certifications does this product include?
StarTech.com provides a 2-year limited warranty for this USB-C hub. The product meets multiple environmental compliance standards including EU RoHS (Restriction of Hazardous Substances), REACH (Registration, Evaluation, Authorization and Restriction of Chemicals), and WEEE (Waste Electrical and Electronic Equipment Directive) requirements. It's manufactured in Taiwan with environmentally friendly materials and processes.
| Qty | Price | Available |
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