R SLOT fits MERCEDES B200 W246 1.6L Turbo

b200 slot In the front mezzanine slot, the B200 M6 supports a front mezzanine module. The front mezzanine module mounts onto the motherboard, and provides connection. DIMM Slot Identifiers. This blade server contains 32 DIMM slots—16 per CPU. To assist with identification, each DIMM slot displays its memory

b200m, 24 DIMM slots for industry-standard DDR4 memory at speeds up to 2933 MHz, with up to 3 TB of total memory when using 128-GB DIMMs. Up to 12 DIMM slots ready.