Silverstone ECM21 M.2 (NGFF) NVMe to PCI-E X4 adapter card

Product Overview SilverStone’s ECM21 is an adapter designed for users wanting to utilize or add speedy M.2 devices such as SSD onto their existing PC or motherboard. ECM21 supports M.2 device (M key) to run via the super fast PCI-E interface for added storage potential. For users looking to have the fastest data access speed on a desktop computer, the ECM21 is a must have.

• Converts M.2 port (M key) into one PCI-E x4 interface.
• Includes optional low-profile expansion slot.
• No driver installation required.

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.
Features nterface PCI Express x4
SSD Interface M.2 (NGFF)
Module Key PCI-E x4-based M key
Support Length of M.2 SSD 30mm, 42mm, 60mm, 80mm
Operating system support Microsoft Windows 7/8/8.1/10 (32-bit, 64-bit), or future release versions
Mac OS 10.5 or above
Dimension 120mm (W) x 23mm (H) x 104mm (D)
4.72" (W) x 0.91" (H) x 4.09" (D)