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

■ Includes aluminum heatsink and thermal pad for enhanced M.2 SSD cooling

■ Supports 2230,2242,2260 and 2280 length M.2 SSD

■ No driver installation required


Before (no thermal pad): 64 deg. Celsius (147.2 deg. Fahrenheit)
After (with thermal pad): 38.6 deg. Celsius (101.48 deg. Fahrenheit)

Test Environment


AMD Ryzen Threadripper 1920x 12-core Processor

CPU Cooler

SilverStone HE01




V-COLOR DDR4-2400 8GB x 2


SilverStone ST1500-GS





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) only support to install this type
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) only support to install this type
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.




Model No. SST-ECM23
Interface PCI Express x 4 via full size x 16 pinout
SSD Interface M.2 (NGFF)
Module Key PCIe x 4 NVMe-based M key
LED indicator PCIe M.2 SSD Read / Write LED: Blue blinking
Net Weight and dimension Heatsink with PCB:105mm (W) x 11mm (H) x 44mm (D), 52g
Heatsink with PCB:4.13" (W) x 0.43" (H) x 1.73" (D), 52g
Support Length of M.2 SSD 30mm, 42mm, 60mm, 80mm
Thermal Pad
Operating temperature-40 °C ~ 220 °C
Thermal pad thickness0.5 / 1 / 1.5mm
Thermal conductivity1.5W/m.k
Net Weight and dimensionCharcoal Pad:70 mm (W) x 0.5 mm (H) x 20mm (D), 1.95g
Blue Pad :70 mm (W) x 1 mm (H) x 20mm (D), 3.6g
Gray Pad: 70 mm (W) x 1.5 mm (H) x 20mm (D), 5.5g

Charcoal Pad:2.76" (W) x 0.02" (H) x 0.79" (D), 1.95g
Blue Pad:2.76" (W) x 0.04" (H) x 0.79" (D), 3.6g
Gray Pad:2.76" (W) x 0.06" (H) x 0.79" (D), 5.5g
Remark :
* ECM23 support 'M' key only, not good for B-Key SATA base M.2 SSD.
* 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.
* M.2 PCIe-NVMe mode SSD requires the use of Intel® 9 series (Z97 H97 Z170 X99) / AMD 300 series (A320 B350 X370) or higher version chipset motherboard with Windows 8 or higher version operating system.

  • Q&A

Describe Ver Size Download
ECM23 manual V1.0 513 KB
ECM23 High resolution photos 4,647 KB
ECM23 eDM (ecm23-edm-en.jpg)   323 KB

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ECM24 M.2 NVMe SSD to PCIe 3.0 x4 adapter with heatsink more...
ECM25 M.2 NVMe SSD to PCIe x4 1U adapter card more...
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No such information.