StarTech.com 4 Port Dual Bus PCIe USB 3 Card w/ UASP

4Port PCIe USB 3.0 Controller Card w/ 2 Independent Channels
4 Port PCI Express (PCIe) SuperSpeed USB 3.0 Card Adapter w/ 2 Dedicated 5Gbps Channels - UASP - SATA / LP4 Power
"Add four USB 3.0 ports with two independent channels, LP/SATA power, and charging support to your PC through a PCI Express slot - 4 Port PCIe USB 3.0 Card w/ 2 Dedicated Channels"
2 Year warranty

The PEXUSB3S42V 4-Port PCI Express USB 3.0 Card lets you add four USB 3.0 ports with two dedicated 5 Gbps channels to your PCIe x4-enabled PC. This independent port architecture improves USB 3.0 performance by transferring data on two individual channels to your computer, giving you faster file transfers.

When multiple devices are connected, traditional single bus USB 3.0 cards share your maximum bandwidth between all ports. By employing a second host controller chipset, the transmission channel is shared across two ports rather than four. Dedicating up to 5 Gbps for each set of two ports reduces performance bottlenecks, and effectively doubles your total available to bandwidth to 10 Gbps.

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 requires a compatible operating system). 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.

For high-power USB devices, this PCIe USB 3.0 card includes an optional SATA or 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). The USB 3.0 card also supports USB Battery Charging Specification 1.2 (Apple Mode only), letting you charge compatible Apple devices (iPhones and iPads) faster than a standard USB 3.0 port.

The controller card is compliant with USB 3.0 standards while offering backward compatibility with existing USB 2.0 / 1.1 devices. For added versatility, the USB 3.0 PCIe card is equipped with a standard profile bracket and includes a low-profile/half-height bracket for installation in small form-factor computers.

Backed by a StarTech.com 2-year warranty and free lifetime technical support.

Improved Performance with UASP

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.

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.

Packaging Information
Package Length	20.9 cm [8.2 in]
Package Width	14.5 cm [5.7 in]
Shipping (Package) Weight	200 g [7.1 oz]
Performance
Maximum Cable Length	3 m [9.8 ft]
Maximum Data Transfer Rate	5Gbps per 2 ports - 10Gbps Total
Type and Rate	USB 3.0 - 5 Gbit/s
UASP Support	Yes
Physical Characteristics
Material	Steel
Product Height	12 cm [4.7 in]
Product Length	16.7 cm [6.6 in]
Product Width	15 mm [0.6 in]
Weight of Product	90 g [3.2 oz]
Prominence
Description CDW 75 - 1st Line	StarTech.com 4 Port USB 3.0 PCIe Card w/ 2 Dedicated Channels - UASP
Software
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
Special Notes / Requirements
System and Cable Requirements	Available PCI Express x4 or greater slot
What's in the Box
Included in Package	4 Port PCIe USB Card
	Driver CD
	Instruction Manual
	Low Profile Bracket
Packaging Information
Package Height	39 mm [1.5 in]
Hardware
Ports	4
Port Style	Integrated on Card
Interface	USB 3.0
Industry Standards	USB 3.0 Specification Rev. 1.0 USB Battery Charging Specification Rev. 1.2 (Apple Mode only) PCI Express Base Specification Rev. 2.0 Intel xHCI Specification Rev. 1.0
Chipset ID	Renesas/NEC - µPD720202
Card Type	Standard Profile (LP bracket incl.)
Bus Type	PCI Express
Environmental
Storage Temperature	-20°C to 60°C (-4°F to 140°F)
Operating Temperature	0°C to 50°C (32°F to 122°F)
Humidity	5~85% RH
Connector(s)
Internal Ports	SATA Power (15 pin) Plug
	LP4 (4 pin; Large Drive Power) Male
External Ports	USB Type-A (9 pin) USB 3.0 (5 Gbps) Female
Connector Type(s)	PCI Express x4 Male

Manufacturer Information:https://www.startech.com/en-au/PEXUSB3S42V