Ssd M2 M Key B Key

Some motherboard host connectors may be designed only to accommodate m key ssds while others may only accommodate b key ssd.

Ssd m2 m key b key.

M 2 ssd の仕様や商品情報等を見ると key b key m key b m という表記が見られます これらは何を意味しているのでしょうか m 2 ssd よくある質問 kingston によると m 2 ssd に見られる key b key m key b m は key id を示すそうです. The m 2 specification identifies 12 key ids on the module card and socket interface but m 2 ssds typically use three common keys. The b m keys on an m 2 ssd allow for cross compatibility on various motherboards if the appropriate ssds protocol is supported sata or pcie.

Employing a more flexible physical specification the m 2 allows different module widths and lengths and paired with the. Ssd can only be installed one way. The b m keys ssd was designed to address this issue. 3 fpc cable length 20cms support following m 2 ngff pci e ssd.

Xp941 mzhpu128hcgm mzhpu256hcgl mzhpu512hcgl. An m 2 ssd is keyed to prevent insertion of a card connector male to an incompatible socket female on the host. 1 ngff m 2 pcie m key extension card is used to protect m 2 ngff pcie ssd or m key slot it support all m 2 m key ssd such as samsung xp941 sm950 sm951 960 evo nmve ssd 2 support 4sizes m 2 pcie m key ssd 22x30 22x42 22x60 22x80mms. M 2 key m ssd and m 2 key b will not work together at the same time only if you use third adapter the interface of u2 socket will be on sata or pci e protocol so you must use m 2 b key sata ssd or m 2 m key pci e ssd.

Currently an m 2 ssd has either one of three key types. M 2 replaces the msata standard which uses the pci express mini card physical card layout and connectors. B m or b m while a socket can only have one key. A b keying pins 12 19 gives pci express ssds up to 2x lanes of bandwidth while a m keying pins 59 66 provides pci express ssds with up to 4x lanes of bandwidth.