StarTech
.com 4-Port PCI Express SuperSpeed USB 3.0 Controller Card with UASP - 5Gbps - USB 3.0 Expansion Card with SATA Power , TAA (PEXUSB3S4V)
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
The 4-port USB 3.0 PCI express card (with SATA Power) adds 4 external USB 3.0 ports to any PCI Express-enabled computer system with support for data rates up to 5 Gbps, while remaining backward compatible with USB 2.0 / 1.x devices. Enhanced with UASP support (USB Attached SCSI Protocol), this SuperSpeed USB 3.0 PCI express card performs up to 70% faster than conventional USB 3.0 when paired with a UASP supported enclosure (Note: UASP requires a compatible operating system). Using a more efficient protocol than the traditional USB BOT (Bulk-Only Transport), UASP technology optimizes…
SpecPicks Verdict
SpecPicks classifies StarTech.com 4-Port PCI Express SuperSpeed USB 3.0 Controller Card… as a solid pick with broad community endorsement in the expansion cards category, based on 254 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. StarTech's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for expansion cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Solid 4.2★ customer rating
- ✓ Backed by StarTech's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- VERSATILE FUNCTIONALITY: The SuperSpeed USB 3.0 PCI express card adds 4 external USB 3.0 ports with support for data rates up to 5 Gbps, while remaining backward compatible with USB 2.0 / 1.x devices.
- ENHANCED WITH UASP SUPPORT: This 4-port USB 3.0 PCI express card uses UASP technology; UASP technology optimizes transfers by allowing multiple commands to be processed simultaneously.
- STACKED PORT LAYOUT: The USB 3.0 controller card places the ports one on top of the other, enabling all four USB 3.0 ports to be external facing, while fitting into a low-profile computer system.
- ADDED POWER CAPABILITIES: With a built-in SATA power connector, each USB port in this USB 3.0 expansion card can provide up to 900mA of power to devices (500mA for USB 2.0).
Full Specifications
| Brand | StarTech.com |
|---|---|
| Style | PCI Express |
| Style Name | PCI Express |
| Unit Count | 1.0 Count |
| Connectivity | USB |
| Model Number | PEXUSB3S4V |
| Item Type Name | USB Adapter |
| Mfr Part Number | PEXUSB3S4V |
| Operating System | Windows 7 Windows 8 Windows Server 2012 Windows 10 Windows Server 2016 Windows Server 2019 |
| Compatible Devices | Laptop, Personal Computer |
| Hardware Interface | Express Card, USB |
| Warranty Description | 2-Year |
| ADDED POWER CAPABILITIES | With a built-in SATA power connector, each USB port in this USB 3.0 expansion card can provide up to 900mA of power to devices (500mA for USB 2.0). |
| Item Dimensions L x W x H | 3"L x 0.7"W x 2.7"H |
Ready to buy?
StarTech.com 4-Port PCI Express SuperSpeed USB 3.0 Controller Card with UASP - 5Gbps - USB 3.0 Expansion Card with SATA Power , TAA (PEXUSB3S4V) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.
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