Add front or rear panel USB 3.0 ports to your computer case using USB 3.0 motherboard-style headersThis PCI Express USB 3.0 card offers a cost-effective upgrade that lets you add four USB 3.0 ports to your computer through a PCIe slot. It offers two external ports plus two internal (IDC) USB 3.0 headers to help adapt your desktop or server to support a variety of USB 3.0 devices.Flexible and convenient port designWith extra motherboard-style USB 3.0 headers you have the flexibility to add more internal USB 3.0 devices to your PC. When your existing headers are occupied, you can connect front panel hubs or card readers using this versatile alternative to costly motherboard and computer upgrades.For added convenience, the card integrates two external USB 3.0 ports, so you can plug in more devices such as external hard drives or printers.Simple installation and supports older devicesThe USB 3.0 card is easy to install and requires no additional drivers or software in natively supported Windows® 8.1 / 8 operating systems. Plus, it features a dual profile design that fits in standard or low-profile cases, so you can rest assured it will fit in your small form-factor system if needed.Connecting older peripherals isn't a problem either. So, there's no need to purchase new devices since the adapter card is backward compatible with your USB 2.0 and 1.x technology.Effective USB 3.0 performance enhanced by UASPThis high-performance SuperSpeed USB 3.0 card supports data transfer rates up to 5 Gbps and is enhanced with UASP support, which can perform ~70% faster read speed and 40% faster write speed over traditional USB 3.0, when paired with a UASP-enabled enclosure.The PEXUSB3S2EI is ruggedly built for reliable USB 3.0 device connections and is backed by a StarTech.com 2-year warranty and free lifetime technical support.Note: UASP (USB Attached SCSI Protocol), is supported in Windows 8, 8.1, Server 2012 and Linux kernel 2.6.37 or later. Test results were obtained using an Intel® Ivy Bridge system, StarTech.com add-on USB 3.0 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid-state drive.The StarTech.com Advantage

Technical details
Sustainability certificates	CE, RoHS
System requirements
Windows operating systems supported	Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 IoT Enterprise, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 11, Windows 11 x64, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
Server operating systems supported	Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019
Ports & interfaces
Host interface	PCIe
Output interface	SATA, USB 3.2 Gen 1 (3.1 Gen 1)
Expansion card form factor	Full-height / Low-profile
Expansion card standard	PCI 2.0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
Internal SATA ports quantity	1
Weight & dimensions
Width	18 mm
Depth	92 mm
Height	120 mm
Weight	53 g
Operational conditions
Operating temperature (T-T)	5 - 50 °C
Storage temperature (T-T)	-25 - 70 °C
Operating relative humidity (H-H)	20 - 80%
Packaging data
Mounting brackets included	Y
Drivers included	Y
Manual	Y
Package width	174 mm
Package depth	143 mm
Package height	33 mm
Package weight	143 g
Other features
Maximum operating distance	3 m
Design
Internal	Y
Product colour	Metallic, Red
Maximum cable length	3 m
Mean time between failures (MTBF)	1920042 h
Features
Chipset	Renesas / NEC - µPD720201
Data transfer rate (max)	5 Gbit/s
UASP support	Y
Logistics data
Harmonized System (HS) code	84733020
Products per master (outer) case	60 pc(s)
Master (outer) case width	383 mm
Master (outer) case length	495 mm
Master (outer) case height	316 mm