What is the benefit of having both B+M key?
同時擁有 B+M 型接腳的優勢為何？
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). Some motherboard host connectors may be designed only to accommodate M-key SSDs, while others may only accommodate B-key SSD. The B+M keys SSD was designed to address this issue; however, plugging in a M.2 SSD into a socket will not guarantee it will work, as that will depend on having a shared protocol between the M.2 SSD and the motherboard.
只要具有適用的固態硬碟通訊協定支援 (SATA 或 PCle)，M.2 固態硬碟上的 B+M 型接腳便能夠在各種主機板上擁有交叉相容性。部分主機板的主機連接器之設計只能使用 M 型接腳的固態硬碟，而有些主機板只能使用 B 型接腳的固態硬碟。B+M 型接腳固態硬碟的設計便因應而生；不過，能將 M.2 固態硬碟插入至插槽內不代表就能夠可以運作，這取決於 M.2 固態硬碟和主機板之間具有共用的通訊協定。