SuperSpeed USB 20Gbps / internal USB-C Key-A 3.2 Gen 2x2 PCIe expansion card

■ SuperSpeed USB 20Gbps

■ Internal USB Type-C Key-A connector

■ PCI Express Gen3 x4 lanes, transfer rate up to 32GT/s

■ Compliant with PCI Express Base 3.1a specification.

■ Compliant with eXtensible Host Controller Interface (xHCI) specification Revision 1.1

■ Compliant with USB Attached SCSI Protocol (UASP) Revision 1.0

■ Includes optional low profile slot cover for supporting low profile cases

One of world’s first to achieve SuperSpeed 20Gbps USB bandwidth on a front I/O Type-C connector
Includes optional low profile slot cover for supporting low profile cases


Model No. SST-ECU07
Power requirement PCI Express bus power
Form factor Low profile – PCI Express Gen 3 x4 (32GT/s)
USB Ports Internal USB 3.2 Gen 2x2 Type-C Key-A connector
USB 3.2 controller ASMedia ASM3242
Transmitting Speed USB 3.2 Gen 2x2 (20Gbps), USB 3.2 Gen 2x1 (10Gbps), USB 3.2 Gen 1 (5Gbps), USB 2.0 (480Mbps), USB 1.1 (12Mbps)
Operating system support Windows 8-10, Windows Server 2016-2019, Mac10.X, Linux OS* in-box xHCI driver natively support UASP, no additional driver required
Power Management Support USB 3.2 and USB 2.0 link power management
Extra UASP and Multiple INs function
Current protection Support over current detection
Operation Temperature Operating temperature range: 0 ~ 85 ºC
Storage temperature range: -20 ~ +70 ºC
Humidity range: 5 ~ 95% RH
Net weight 47g
Dimension 123mm(W) x 21mm(H) x 105mm(D)
4.84" (W) x 0.83" (H) x 4.13" (D)
Remark :
* User should confirm which OS version support xHCI driver natively.
** If your operating system is incompatible with the expansion cards developed by SilverStone, such that your device can not be detected or recognized, please update your motherboard’s driver or BIOS to the latest version. You may also try executing compatible mode in your operating system and select previous versions of operation system to install driver required by the expansion cards.
*** if the transfer speed cannot reach the 20Gbps, please check the below items
1.PCIe version of motherboard
2.Key-A cable lanes, 20Gbps transfer speed must have 2 lanes cable
3.Key-A cable quality and cable length (internal + external cable)

  • Q&A

Describe Ver Size Download
ECU07 High resolution photos 11,020 KB
ECU07 manual V1.0 1,366 KB
ECU07 Product Sheet V1.0 1175 KB

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