While physical size is the easiest observable way to distinguish the difference between cards the m 2 standard uses a.
Nvme m 2 b key.
M 2 replaces the msata standard which uses the pci express mini card physical card layout and connectors.
M 2 nvme pcie 3 0 x4 256gb ssd m 2 nvme pcie 3 0 x2 128gb ssd m 2 sata3 256gb ssd this being a 128gb ssd points to it being an nvme ssd however i do not know if it will be compatible with our usb c to nvme enclosure as we have not tested any nvme ssds with a b key cutout.
The m 2 specification identifies 12 key ids on the module card and socket interface but m 2 ssds typically use three common keys.
B m or b m while a socket can only have one key.
B m and b m.
M 2 pcie https goo gl k9xsx2 my attempt at converting a m 2 key m to a b m key.
1x 2280 sata iii m key asus rog gl552vw.
1x pcie nvme m 2 slot 2280 m key asus rog gl504.
Employing a more flexible physical specification the m 2 allows different module widths and lengths and paired with the.
The m 2 platform is versatile and supports a wide variety of m 2 cards.
1x 2280 sata iii m key asus rog gl552vl.
Currently an m 2 ssd has either one of three key types.
Dual m 2 pcie adapter for sata or pcie nvme ssd with advanced heat sink solution m 2 ssd nvme m key and sata b key 22110 2280 2260 2242 2230to pci e 3 0 x 4 host controller expansion card 4 3 out of 5 stars 256.
Performance of pcie nvme m 2 ssds leveraging pcie x4 lanes is roughly twice as high as with pcie x2 lanes so the vast majority of mainboards today support m key slots with 4 lanes.
1x 2280 sata iii m key.
1x pcie nvme m 2 slot 2280 m key 1896 00.
1x pcie nvme m 2 slot 2280 m key asus rog gl503vm.
Read our earlier guide to understand why this is important.
A b key enables sata or pcie nvme ssds using up to 2 pcie lanes while an m key enables nvme ssds with the use of up to 4 pcie lanes.
An m 2 ssd is keyed to prevent insertion of a card connector male to an incompatible socket female on the host.
M 2 formerly known as the next generation form factor ngff is a specification for internally mounted computer expansion cards and associated connectors.