StarTech.com ECUSB3S254F 2-Port Flushmount USB 3.0 ExpressCard Adapter

Order Code:

19-9598

Brand: StarTech.com MPN: ECUSB3S254F EAN-13: 0065030843577
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1+ £48.13
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1 available to back orderBack order, lead time 7 days

The ECUSB3S254F Flush Mount 2-Port USB 3.0 ExpressCard Adaptor from StarTech.com lets you add two USB 3.0 ports to your ExpressCard-enabled laptop.

The USB 3.0 card uses a unique design that allows it to sit flush in a standard 54mm laptop ExpressCard slot, creating a seamless add-on that can be left installed even while on the move, without having to worry about impact damage to either the card or the ExpressCard slot.

Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.0 controller performs up to 70% faster than conventional USB 3.0. UASP technology optimises transfers by allowing multiple commands to be processed simultaneously, significantly increasing transfer speeds for less wait time on data transfers.

The SuperSpeed USB 3.0 Card supports data transfer rates of up to 5Gbps, and is backward compatible with USB 2.0 (at up to 480Mbps), or USB 1.1/1.0 at up to 1.5/1.2 Mbps respectively - the perfect laptop accessory for users to connect USB devices, both new and old.

This product is backed by a 2-year warranty and free lifetime technical support.


  • Bus type: 54mm ExpressCard
  • External ports: USB 3.0 A (9 pin, SuperSpeed) female
  • Interface type and rate: USB 3.0, 5 Gbit/s
  • OS compatibility: Windows® 10, 8 / 8.1, 7, Vista, XP
  • Plug type: A
  • Ports: USB 3.0 A (9 pin, SuperSpeed) female, 2
  • Power source: Not included (not required for standard applications)
  • System and cable requirements: Available ExpressCard/54 slot
  • UASP support
  • Product dimensions: 74 x 54 x 5mm
  • Manufacturer's part no. ECUSB3S254F

Note: UASP requires a compatible operating system.

Type ExpressCard to USB adaptor
Interface USB 3.0 x2
Chipset NEC uPD720200
Compatible operating systems Windows XP(32/64-bit)/ Server 2003(32/64-bit)/ Vista(32/64-bit)/ Server 2008 R2/ 7(32/64-bit)
Data transfer rate 5 Gbit/s
Depth 74mm
Harmonized System (HS) code 84733020
Height 5mm
Host interface ExpressCard
Internal Yes
Operating temperature (T-T) 0 - 85 °C
Output interface USB 3.2 Gen 1 (3.1 Gen 1)
Package depth 145mm
Package height 31mm
Package weight 105 g
Package width 175mm
Plug Type A
Product colour Black
Storage temperature (T-T) -65 - 125 °C
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity 2
Weight 23.8 g
Width 54mm

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