STARTECH.COM PEXUSB3S25
USB Adapter - PCI Express x1 - Plug-in Card - Black - TAA Compliant - 2 Total
Key facts
- Part number
- PEXUSB3S25
- Brand
- STARTECH.COM
- Category
- Adapters
- Price
- AUD 79.19≈ USD 55.23 RRP
- Availability
- On request — ask for a quote
The STARTECH.COM PEXUSB3S25 is an adapter listed on tprice.co. RRP AUD 79.19≈ USD 55.23 (Oct 2026). Request a quote for volume pricing, or sell us your used adapters.
Overview
The PEXUSB3S25 2-Port PCI Express USB 3.0 Card lets you add two USB 3.0 ports to your PCI Express-enabled computer system, with an optional LP4 power connector to connect to your system power supply and deliver up to 900mA of power per port to USB 3.0 bus-powered devices (500mA for USB 2.0).
Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.0 controller performs up to 70% faster than conventional USB 3.0 when paired with a UASP supported enclosure (Note: UASP is not supported by all operating systems). Using a more efficient protocol than the traditional USB BOT (Bulk-Only Transport), UASP technology optimizes transfers by allowing multiple commands to be processed simultaneously, significantly increasing transfer speeds for less wait time on data transfers. See our UASP test results below for further details.
The PCIe USB 3.0 adapter is compliant with USB 3.0 standards for data transfer speeds up to 5 Gbps, while still offering backward compatibility with existing USB 2.0 / 1.1 devices. For added versatility, the controller card is equipped with a standard profile bracket and includes a low-profile/half-height bracket for installation in small form-factor computers.
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 3.0 at peak performance.
At the same peak in testing, UASP also showed up to an 80% reduction in required processor resources.
- USB Adapter plug-in with PCI Express x1 host interface
- Offers additional 2 USB ports to the existing USB systems
Specifications
General
- Host Interface
- PCI Express x1
- Total Number of USB Ports
- 2
- Number of USB 3.0 Ports
- 2
- Additional Information
- OS Compatibility: Windows® Vista, 7, 8, 8.1, 10 Windows Server® 2008 R2, 2012, 2012 R2, 2016, 2019 Linux 2.6.31 to 4.11.x LTS versions only
- Package Contents
- 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - LP4 Power1 x Low Profile Bracket1 x Driver CD1 x Instruction Manual
- Platform Supported
- PC
Linux
- Environmentally Friendly
- Yes
- TAA Compliant
- Yes
- Weight (Approximate)
- 90 g
- Form Factor
- Plug-in Card
- Length
- 67 mm
- Height
- 121 mm
- Width
- 19 mm
- Product Color
- Black
- Product Type
- USB Adapter
Manufacturer Website Address
- Product Name
- 2 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter with UASP - LP4 Power
Price history
- Latest
- AUD 79.19≈ USD 55.23
- Oct 2026
- Lowest recorded
- AUD 79.19≈ USD 55.23
- Highest recorded
- AUD 79.19≈ USD 55.23
- Recorded
- 2026
- 1 price point
AUD 79.19 rrp, recorded
Why buy from Prology
- Tested before dispatchEvery item is checked by our technicians before it ships.
- Warranty includedParts are covered by a Prology warranty – ask us for the terms.
- Fast shippingDispatched from our Australian and US locations.
- Real people, quick repliesQuotes and answers within 1 business day.
Request a quote for PEXUSB3S25
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