m.2 adapter funktionieren nicht?

No, that doesn’t mean it. B+M Key SSD’s fit in B Key and in M Key Slots, but in any case they need SATA support, even in an M Key Slot.

In B Key Slots, however, only SATA support is available. That’s why it doesn’t make sense to miss a M.2 PCIe SSD a B+M Key connection, as it also fits in B Key Slots, where only SATA support is available. There is no M.2 PCIe B+M Key SSD at all.

M.2 Slots:

• A Key or E Key – PCIe for M.2 mini WLAN/Bluetooth Modules
• B Key – M.2 SATA B Key or M.2 SATA B+M Key SSD’s
• M Key – M.2 PCIe M Key SSD and M.2 SATA B+M Key SSD’s if, in addition to PCIe support, SATA support is also available in an M.2 M Key slot

M.2 SSDs:

• B Key SSD’s need SATA support and fit only B Key Slots
• B+M Key SSD’s require SATA support and fit in B Key and in M Key Slots, with an M Key Slot additionally having to be available SATA support, otherwise no B+M Key SATA SSD’s will be supported in an M.2 PCIe M Key Slot, but only M.2 PCIe M Key SSD’s
• M Key SSD’s need PCIe support and fit only in M Key Slots