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Green circuit board with two blue USB ports and a SATA power connector, full-height metal bracket installed

STARTECH

STARTECH PEXUSB3S24 2 Port PCI Express USB 3.0 Expansion Card

SKU CH-QV76-Z93NY MPN PEXUSB3S24

Adds two 5 Gbps USB 3.0 ports with UASP and optional SATA power via a PCI Express x1 slot

  • TypePCI Express to USB Card
  • External USB Ports2 - USB 3.0 A (9 pin; SuperSpeed) Female
  • Internal Ports1 - SATA Power (15 pin) Plug
  • StandardUSB 3.0
  • Data Transfer RateUp to 5.0 Gbps
  • Operating Systems SupportedWindows 8 (32/64bit), 7 (32/64), Vista(32/64), XP(32/64) Win

Model SATA - NEC 2 Ext

  • LP4 - NEC 2 Ext
  • SATA - Etron 2 Ext
  • SATA - NEC 2 Ext
  • SATA - NEC 1 Ext / 1 Int

Struck-through versions exist but are not stocked here.

  • Adds two USB 3.0 ports for faster peripheral connections
  • UASP support boosts external storage transfer efficiency
  • Optional SATA power delivers up to 900mA per port for power-hungry devices
  • Includes low-profile bracket for compact chassis compatibility
  • PCI Express 2.0 x1 interface provides up to 5.0 Gbps bandwidth

Two USB 3.0 ports with SATA power

This PCI Express x1 add-on card adds two external USB 3.0 Type-A ports to a desktop computer. It draws supplementary power from an internal SATA connector so each port can deliver up to 900 mA for charging or bus-powered devices. A low-profile bracket is included for small-form-factor cases.

Upgrade from USB 2.0 headers

The jump is worthwhile when a motherboard lacks native USB 3.0 connectivity or when existing headers are occupied. UASP support reduces protocol overhead on compatible storage, and the NEC µPD720202 controller is compatible with Windows XP through Windows 8, Windows Server 2003 through 2012, and Linux kernel 2.6.31 or later.

5 Gbps bandwidth shared across two ports

The link comfortably handles external hard drives, flash drives and docking stations at SuperSpeed rates. Cable runs up to 3 metres are supported without signal degradation. Bandwidth is divided when both ports are active simultaneously, so sustained transfers on two high-throughput devices will saturate the single PCI Express 2.0 lane.

Highlights

  • Adds two USB 3.0 ports for faster peripheral connections
  • UASP support boosts external storage transfer efficiency
  • Optional SATA power delivers up to 900mA per port for power-hungry devices
  • Includes low-profile bracket for compact chassis compatibility
  • PCI Express 2.0 x1 interface provides up to 5.0 Gbps bandwidth

Specifications

BrandStarTech.com
ModelPEXUSB3S24
TypePCI Express to USB Card
External USB Ports2 - USB 3.0 A (9 pin; SuperSpeed) Female
Internal Ports1 - SATA Power (15 pin) Plug
StandardUSB 3.0
Data Transfer RateUp to 5.0 Gbps
Operating Systems SupportedWindows 8 (32/64bit), 7 (32/64), Vista(32/64), XP(32/64)
Windows Server 2012, 2008 R2, 2003(32/64)
Linux 2.6.31 or later
SpecificationsBus Type: PCI Express
Card Type: Standard Profile (LP bracket incl.)
Chipset ID: NEC - µPD720202
Connector Type(s): 1 - PCI Express x1 Male
Maximum Cable Length: 9.8 ft [3 m]
Maximum Data Transfer Rate : 5 Gbps
UASP Support: Yes
FeaturesProvides two external USB 3.0 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 3.0 rev 1.0 and Intel xHCI rev 1.0 specifications
Backward compatible with USB 2.0 and USB 1.0/1.1 devices
Add 2 SuperSpeed USB 3.0 ports with SATA power to your PCI Express-enabled PC
Compatible with HP Pro 6300 / Lenovo ThinkCentre M72e
2 Port PCI Express USB 3.0 Card Adapter w/ UASP / 2Port USB 3.0 Controller Card
U
Dimensions4.70" x 2.60" x 0.70" (H x L x W)
Weight0.09lb
Package Contents1 - PCI Express USB 3.0 Card
1 - Low Profile Bracket
1 - Driver CD
1 - Instruction Manual
Shipping weight0.15 kg
Package size173 × 140 × 33 mm

Questions about this item

Does this card fit a standard-profile or low-profile slot?

The board is a standard-profile PCIe x1 card measuring 4.70 inches by 2.60 inches and a low-profile bracket is included in the box.

Which slot and power connector are used during installation?

Insert the card into any PCI Express x1 slot and optionally attach a SATA 15-pin power plug to deliver up to 900 mA per port.

Will the SATA power connector or the NEC controller need replacement later?

The SATA power plug is a passive cable connection with no wear parts and the NEC µPD720202 controller is soldered on the board, so neither requires scheduled replacement.

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