
4 Port PCI SuperSpeed USB 3.0 Adapter Card with SATA / SP4 Power
StarTech ID: PCIUSB3S4
The PCIUSB3S4 4-Port PCI to USB 3.0 Card enables legacy PCI slots to support the SuperSpeed USB 3.0 
standard, which is capable of data transfer rates up to 5 Gbps. Using USB 3.0 devices with this card will increase 
data transfer rates with up to 1.3 Gbps of available bandwidth (PCI bus limit) - more than doubling performance 
compared to a USB 2.0 connection.
This versatile USB 3.0 adapter includes an optional SATA power connector which allows each USB port to deliver 
up to 900mA of power to connected USB 3.0 devices - suitable for even the most power hungry devices.
A perfect solution for older PCI-based systems or computers with only PCI expansion slots remaining, the card 
allows those systems to stay relevant and up-to-date with the latest USB technology. The card is also backward 
compatible with USB 2.0 and 1.x devices, so it will not only work with any future USB 3.0 devices, but will also 
support older devices.
The PCIUSB3S4 4-Port PCI USB 3.0 Card is backed by StarTech.com lifetime warranty and free lifetime technical 
support.
Applications
Add USB 3.0 capabilities to an older PCI-based system 
Expand system capabilities by adding external USB ports 
Enable Super Speed USB 3.0 data communication for external storage devices and audio/video devices
Features
4 external SuperSpeed USB 3.0 ports 
Provides up to 900mA of power over USB 3.0 
Built-in optional SATA power connector for bus-powered USB devices 
Backward compatible with USB 2.0/1.x devices 
Compliant with USB 3.0 base specification 1.0 and xHCI specification 0.95 
Compliant with PCI Specification 3.0 
Includes a low profile/half-height installation bracket
 

Technical Specifications
Warranty Lifetime 
Bus Type PCI / PCI-X (5 / 3.3V) 
Card Type Standard Profile (LP bracket incl.) 
Chipset ID NEC uPD720202 
Interface USB 3.0 
Connector Type(s) 1 - PCI / PCI-X (Universal 3.3 & 5V; 32-bit) 
External Ports 4 - USB 3.0 A (9 pin; SuperSpeed) Female 
Internal Ports 1 - SATA Power (15 pin) Plug 
Internal Ports 1 - SP4 (4 pin; Small Drive Power) Plug 
Type and Rate USB 3.0 - 5 Gbit/s 
UASP Support Yes 
Maximum Data Transfer
Rate
1.3 Gbps (PCI Bus)
OS Compatibility Windows XP(32/64-bit)/ Server 2003(32/64-bit)/ Server 2008 R2/ Vista(32/64-bit)/
7(32/64-bit)/ 8(32/64-bit) 
Color Red 
Product Height 2.6 in [65 mm] 
Product Length 5.2 in [133 mm] 
Product Weight 2.8 oz [80 g] 
Product Width 0.8 in [20 mm] 
Humidity 15% ~ 90% RH 
Operating Temperature 5°C to 50°C (41°F to 122°F) 
Storage Temperature -25°C to 70°C (13°F to 158°F) 
System and Cable
Requirements
Available PCI slot
System and Cable 
Requirements
Available SATA or Floppy power connector
Shipping (Package) 
Weight
0.5 lb [0.2 kg]
Included in Package 1 - PCI USB 3.0 Card 
Included in Package 1 - Low Profile Bracket 
Included in Package 1 - Driver CD 
Included in Package 1 - Instruction Manual
 

Certifications, Reports and Compatibility