A senior systems administrator is auditing storage drive form factors and interface protocols across a enterprise infrastructure environment. Match each solid-state storage interface specification on the left with its corresponding physical architecture or bus signaling characteristic on the right.
- M.2 Socket 2 (B-Key) NVMe SSDPhysically keyed to cap throughput at PCIe x2 lanes maximum, limiting overall data bandwidth compared to Socket 3.
- M.2 Socket 3 (M-Key) SATA SSDOperates strictly at SATA III limits (6 Gbps) despite fitting physical motherboard slots capable of supporting PCIe speeds.
- U.2 (SFF-8639) NVMe SSDUtilizes a 2.5-inch drive form factor with a high-density connector routing PCIe x4, SAS, or SATA signaling.
- mSATA SSDShares the Mini PCIe physical edge card layout but routes dedicated SATA controller signaling rather than PCIe lanes.
Cevap
M.2 Socket 2 (B-Key) NVMe SSD matches the PCIe x2 throughput restriction. M.2 Socket 3 (M-Key) SATA SSD matches the 6 Gbps SATA III speed limit. U.2 (SFF-8639) NVMe SSD matches the 2.5-inch form factor with PCIe x4 signal routing. mSATA SSD matches the Mini PCIe physical layout with SATA signaling.
Each storage interface matches its specific hardware architecture: B-key M.2 connectors support up to PCIe x2; M-key SATA SSDs are limited by SATA III throughput (6 Gbps); U.2 (SFF-8639) provides PCIe x4 signaling to 2.5-inch drive bays; and mSATA uses Mini PCIe physical pinouts to transport SATA signals.
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Anahtar Kavram
Storage Drive Interface Standards, Physical Keying, and Signaling Protocols