m200 slotM200-C is the aluminum alloy metal shell for M200. The M200-C is support to install with the C296 10mm aluminum alloy heatsink. Installation Video. ... even if the case retains the SDThe memory module slot consists of two sub slots (connectors): Slot A (lower slot) and Slot B (upper slot). 2.Aln the grooves of the memory module with the locking tabs of the connector