20
(1) MCIO connector A3 (PCIe5.0 x4)(NVMe-A3), supporting NVMe drive 9
• PCIe5.0: Fifth-generation signal speed.
• x8: Bus bandwidth.
Front 12LFF4SAS/SATA+8UniBay drive backplane
The PCA-BP-12LFF-EXP-2U-G6 12LFF drive backplane can be installed at the server front to
support twelve 3.5-inch SAS/SATA/NVMe drives, including four SAS/SATA drives and eight
SAS/SATA/NVMe drives. The drive backplane integrates an Expander chip to manage 12 SAS/SATA
drives through an x8 SlimSAS connector. The drive backplane also provides three downlink
interfaces to connect to other drive backplanes and support more drives.
Figure 31 12LFF 4SAS/SATA+8UniBay drive backplane
(1) x8 SlimSAS uplink interface (SAS PORT), managing all drives on the backplane
(2) x4 SlimSAS downlink interface 3 (SAS EXP3)
(3) Power connector 2 (PWR2)
(4) MCIO connector B1/B2 (PCIe5.0 x8)(NVMe-B1/B2), supporting NVMe drives 6 and 7
(5) Power connector 1 (PWR1)
(6) x8 SlimSAS downlink interface 2 (SAS EXP2)
(7) x4 SlimSAS downlink interface 1 (SAS EXP1)
(9) MCIO connector B3/B4 (PCIe5.0 x8)(NVMe B3/B4), supporting NVMe drives 4 and 5
(10) MCIO connector A3/A4 (PCIe5.0 x8)(NVMe A3/A4), supporting NVMe drives 8 and 9
(11) MCIO connector A1/A2 (PCIe5.0 x8)(NVMe A1/A2), supporting NVMe drives 10 and 11
For more information about drive numbering, see "Drive numbering."
PCIe5.0 x8 description:
• PCIe5.0: Fifth-generation signal speed.
• x8: Bus bandwidth.
Front 12LFF UniBay drive backplane
The PCA-BP-12LFF-UniBay-2U-G6 12LFF UniBay drive backplane can be installed at the server
front to support twelve 3.5-inch SAS/SATA/NVMe drives.
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