Startech 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP
SATA Power | Dual Port USB 3 PCIe Controller (PEXUSB3S24) | USB adapter | PCI Express x1 | USB 3.0 x 2 | for P/N: CFASTRWU3, ST3300GU3B, ST4300U3C1, ST4300U3C1B, ST7300U3M, ST7300USBME, USB3S2ESATA3
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Main Specification
| Product Description | Startech 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - SATA Power - Dual Port USB 3 PCIe Controller (PEXUSB3S24) - USB adapter - PCI Express x1 - USB 3.0 x 2 |
|---|---|
| Device Type | USB adapter |
| Form Factor | Plug-in card |
| Interface (Bus) Type | PCI Express x1 |
| Ports | USB 3.0 x 2 |
| Dimensions (WxDxH) | 2.2 cm x 6 cm x 6.5 cm |
| Weight | 56 g |
| Data Link Protocol | USB 3.0 |
| Data Transfer Rate | 5 Gbps |
| Compliant Standards | USB 3.0 |
| System Requirements | Microsoft Windows Server 2008 R2, Microsoft Windows Vista (32/64 bits), Microsoft Windows 7 (32/64 bits), Microsoft Windows XP (32/64 bits), Microsoft Windows Server 2003 (32/64-bits), Windows 8 (32/64 bits) |
| Manufacturer Warranty | 2-year warranty |
| Designed For | P/N: CFASTRWU3, ST3300GU3B, ST4300U3C1, ST4300U3C1B, ST7300U3M, ST7300USB3B, ST7300USBME, USB3S2ESATA3 |
General
| Device Type | USB adapter |
|---|---|
| Form Factor | Plug-in card |
| Interface (Bus) Type | PCI Express x1 |
Networking
| Ports | USB 3.0 x 2 |
|---|---|
| Connectivity Technology | Wired |
| Data Link Protocol | SuperSpeed USB 3.0 |
| Data Transfer Rate | 5 Gbps |
| Compliant Standards | USB 3.0 |
Expansion / Connectivity
| Interfaces | 2 x USB 3.0 - 9 pin USB Type A (external) |
|---|
Miscellaneous
| Included Accessories | Low-profile bracket |
|---|---|
| Compliant Standards | FCC, RoHS |
Software / System Requirements
| Software Included | Drivers & Utilities |
|---|---|
| OS Required | Microsoft Windows Server 2008 R2, Microsoft Windows Vista (32/64 bits), Microsoft Windows 7 (32/64 bits), Microsoft Windows XP (32/64 bits), Microsoft Windows Server 2003 (32/64-bits), Windows 8 (32/64 bits) |
Dimensions & Weight
| Width | 2.2 cm |
|---|---|
| Depth | 6 cm |
| Height | 6.5 cm |
| Weight | 56 g |
Manufacturer Warranty
| Service & Support | Limited warranty - 2 years |
|---|
Environmental Parameters
| Min Operating Temperature | 5 °C |
|---|---|
| Max Operating Temperature | 50 °C |
| Humidity Range Operating | 20 - 80% |
Compatibility Information
| Designed For | P/N: CFASTRWU3, ST3300GU3B, ST4300U3C1, ST4300U3C1B, ST7300U3M, ST7300USB3B, ST7300USBME, USB3S2ESATA3 |
|---|
Product features
Improved Performance with UASP
UASP is supported in Windows 8, 8.1, Server 2012 and Linux kernel 2.6.37 or later. In testing UASP performed with up to a 70% faster read / 40% faster write speed over traditional USB 3.2 Gen 1 at peak performance. At the same peak in testing, UASP also showed up to an 80% reduction in required processor resources. Test results were obtained using an Intel Ivy Bridge system, StarTech.com add-on USB 3.2 Gen 1 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.Key selling points
- Provides two external USB 3.2 Gen 1 ports with UASP support
- Supports data rates up to 5 Gbps
- Compliant with PCI Express 2.0 specifications
- Optional SATA power connector provides up to 900mA per USB port
- Supports USB Battery Charging Specification 1.2
- Fully compliant with USB 3.2 Gen 1 rev 1.0 and Intel xHCI rev 1.0 specifications
- Backward compatible with USB 2.0 and USB 1.0/1.1 devices
- Includes a Low-Profile/half-height installation bracket
References
MPN: PEXUSB3S24
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04/06/2026 10:08:08