Expansion Cards     ECM22

■ Exposed gold inlays efficienty cool installed M.2 SSD for consistently high performance

■ Supports M.2 SSD up to 110mm in length

■ Converts one M.2 port (M key) into one PCIe x4 interface

■ Converts a second M.2 port (B key) into SATA interface

■ Supports two M.2 SSD simultaneously

■ Includes optional Low-profile expansion slot

■ No driver installation required

          SilverStone’s ECM22 is an adapter designed for users wanting to utilize or add speedy M.2 devices such as SSD onto their existing PC or motherboard. In addition to support for one M.2 device (M key) to run via the super fast PCIe interface at up to 32 Gbps, a second M.2 slot (B key) is available for connecting to a SATA III port for increased storage potential. To keep up with ever increasing speed and hotter performing M.2 SSDs, the ECM22 has large, exposed gold inlays to help transfer heat from SSD to its relatively large surface of gold-rich PCB. For users looking to add more M.2 SSD to their PCs with highest performance, the ECM22 is a must have.


Before (no thermal pad): 83 deg. Celsius (181.4 deg. Fahrenheit)
After (with thermal pad): 69.1 deg. Celsius (156.38 deg. Fahrenheit)

Test Environment


Intel Core i7 5930K

CPU Cooler

SilverStone HE01


MSI X99 SLI Plus


ADATA XPG Dazzle DDR4-2400 8GB x 2


SilverStone ST1200-G Evolution


ASUS Strix GeForce GTX 980


Samsung SM951

Thermal pad

SilverStone TP01-M2

There are three types of M.2 SSDs, please make sure you know the difference between them and whether your system/motherboard support them before pairing these with your SilverStone product.

SATA (B key)
Used for SATA SSDs, and interfaced through the AHCI driver and SATA 3.0 (6 Gbit/s) port exposed through the M.2 connector.

PCI Express using AHCI (M key)
Used for PCI Express SSDs and interfaced through the AHCI driver and provided PCI Express lanes, providing backward compatibility with widespread SATA support in operating systems at the cost of not delivering optimal performance by using AHCI for accessing PCI Express SSDs.

PCI Express using NVMe (M key)
Used for PCI Express SSDs and interfaced through the NVMe driver and provided PCI Express lanes, as a high-performance and scalable host controller interface designed and optimized especially for interfacing with PCI Express SSDs. NVMe has been designed from the ground up, capitalizing on the low latency and parallelism of PCI Express SSDs, and complementing the parallelism of contemporary CPUs, platforms and applications.

The following SSD models have been tested and verified by SilverStone to work optimally with the product presented on this page.
Samsung NVMe SSD SM951/961 M.2 Samsung NVMe SSD 960 EVO M.2 Samsung NVMe SSD 960 PRO M.2

Model No. SST-ECM22
LED indicator Power LED: Red
SATA M.2 SSD Read / Write LED: Orange
PCIe M.2 SSD Read / Write LED: Blue
Interface PCI Express x4 / SATA 6 Gbps
SSD Interface M.2 (NGFF)
Module Key SATA-based B key
PCIe x4 NVMe-based M key
Number of Drives 2
Net weight 60g
Support Length of M.2 SSD 30mm, 42mm, 60mm, 80mm, 110mm
Operating system support Microsoft Windows 7 (32bit/64bit), 8/8.1/10 (32bit/64bit) or future release version
Mac OS 10.2.8 or above
Dimension 121mm (W) x 11mm (H) x 157.3mm (D)
4.76" (W) x 0.43" (H) x 6.19" (D)
* ECM22’s 'M' key is for use only with PCIe SSD, 'B' key is for use with only SATA SSD
** B key SSD requires SATA 7 pin cable connected to motherboard to function
*** For B+M Key SATA M.2 SSD, please use B key slot
**** M.2 PCIe NVMe mode SSD requires the use of Intel® 9 series (Z97 H97 Z170 X99) or higher version chipset motherboard with Windows 8 or higher version operating system
***** If you wish to boot off using M.2 SSD, your motherboard needs to support it. Due to BIOS limitations, not all motherboards support booting off M.2 SSD so please consult your motherboard manual or vendor for more details on how to enable this function
****** Before installing M.2 SSD to ECM22, please make sure to remove protective film covering the gold inlays to ensure optimal heat transfer performance

Dual M.2 to PCI-E X4 and SATA 6G adapter card more...
M.2 (NGFF) to PCI-E x4 adapter card more...
M.2 SATA external SSD enclosure with USB 3.1 Gen 2 more...
M.2 SSD thermal pad more...
M.2 SSD cooling kit more...
ECM22 manual
356 KB
ECM22 High resolution photos
3,232 KB

ECM22 eDM (ecm22-edm-en.pdf)
737 KB

No such information.