For those with older systems, or for those just in need of additional M.2 slots in their system, SilverStone has launched the SST-ECM28 riser card. The SST-ECM28 is a low-profile solution that can house one M-key NVMe drive and one B-key SATA drive, as it allows a drive to be mounted on each side of the riser card. The SATA drive requires a SATA cable to be connected to the rear of the riser card and then to a SATA slot on the motherboard to function.
This isn’t the first time we’ve seen a product that can handle two drives, but it’s the first time we’ve seen one that is as compact as this. The downside is that there’s no retention bracket and it appears that the only way to hold the SST-ECM28 is by fitting it into a physical x16 slot that has a locking mechanism for graphics cards, as the PCB has a retention hook, just as you get on most x16 cards. The SST-ECM28 uses a standard x4 PCIe interface, so it will fit in x4 slots as well, with the risk of it popping out of the slot if the system is moved around. Drives of all sizes from 2230 up to 2280 are supported for both SATA and NVMe drives.