RIITOP M.2 (B Key) Enclosure USB 3.0, External M.2 SSD (SATA Based) to USB3.0 Converter Adapter with Case for 2230/2242/2260/2280 (B+M Key) Solid State Drive

It looks like a nice built USB adapter, but unfortunately I received a B key only and not B+M key adapter as stated in article description. See photos, please. I was unable to test it and I'm going to send it back for a replacement. Let's see if I received the right on. Two start for fast shipping and built quality (case is metal).