Startech 2 Port Flush Mount ExpressCard 54mm SuperSpeed USB 3.0 Card Adapter with UASP
Dual Port Laptop ExpressCard USB 3 Controller (ECUSB3S254F) | USB adapter | ExpressCard | USB 3.0 x 2 | for P/N: S2510BU33PW, S251BMU3FP, S251BU31315, S3540BU33E, SM2NGFFMBU33, UNI251BMU33
Main Specification
| Product Description | Startech 2 Port Flush Mount ExpressCard 54mm SuperSpeed USB 3.0 Card Adapter with UASP - Dual Port Laptop ExpressCard USB 3 Controller (ECUSB3S254F) - USB adapter - ExpressCard - USB 3.0 x 2 |
|---|---|
| Device Type | USB adapter |
| Form Factor | Plug-in module |
| Interface (Bus) Type | ExpressCard/34 |
| Ports | USB 3.0 x 2 |
| Dimensions (WxDxH) | 7.4 cm x 5.4 cm x 0.5 cm |
| Weight | 24 g |
| Data Link Protocol | USB, USB 2.0, USB 3.0 |
| Data Transfer Rate | 5 Gbps |
| Processor | 1 x NEC µPD720200 |
| Compliant Standards | USB 1.1, USB 2.0, 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), Windows 10 (32/64 bits) |
| Manufacturer Warranty | 1-year warranty |
| Designed For | P/N: S2510BMU33, S2510BPU33, S2510BPU337, S2510BU33PW, S251BMU3FP, S251BU31315, S3510BMU33, S3510SMU33, S3540BU33E, SM2NGFFMBU33, ST7300USB3B, UNI251BMU33, USB31000NDS, USB31000S, USB31000SW, USB3S2SAT3CB |
General
| Device Type | USB adapter |
|---|---|
| Form Factor | Plug-in module |
| Interface (Bus) Type | ExpressCard/34 |
Networking
| Ports | USB 3.0 x 2 |
|---|---|
| Connectivity Technology | Wired |
| Data Link Protocol | USB, USB 2.0, SuperSpeed USB 3.0 |
| Data Transfer Rate | 5 Gbps |
| Compliant Standards | USB 1.1, USB 2.0, USB 3.0 |
Processor / Memory
| Processor | 1 x NEC µPD720200 |
|---|
Expansion / Connectivity
| Interfaces | 2 x USB 3.0 - 9 pin USB Type A |
|---|---|
| Compatible Slots | 1 x ExpressCard/34 |
Miscellaneous
| 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), Windows 10 (32/64 bits) |
Dimensions & Weight
| Width | 7.4 cm |
|---|---|
| Depth | 5.4 cm |
| Height | 0.5 cm |
| Weight | 24 g |
Manufacturer Warranty
| Service & Support | Limited warranty - 1 year |
|---|
Environmental Parameters
| Min Operating Temperature | 0 °C |
|---|---|
| Max Operating Temperature | 85 °C |
Compatibility Information
| Designed For | P/N: S2510BMU33, S2510BPU33, S2510BPU337, S2510BU33PW, S251BMU3FP, S251BU31315, S3510BMU33, S3510SMU33, S3540BU33E, SM2NGFFMBU33, ST7300USB3B, UNI251BMU33, USB31000NDS, USB31000S, USB31000SW, USB3S2SAT3CB |
|---|
Product features
Improved Performance with UASP
UASP is supported in Windows 8 and Server 2012. 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
- Unique flush-mount form factor design
- Two SuperSpeed USB 3.2 Gen 1 compliant ports with support for transfer rates up to 5 Gbps
- UASP support for more efficient data transfer
- Backward compatible with USB 2.0/1.x devices
- Compliant with USB 3.2 Gen 1 base specification 1.0 and xHCI specification 0.95
- Compliant with PCI Express specification 2.0
- Built-in external DC power connector (optional)
References
MPN: ECUSB3S254F
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04/06/2026 03:32:00