Dell PowerEdge R920 Owner's Manual page 135

Drives
Twenty four or sixteen plus eight hard-drive
systems
Twenty four hard-drive systems (SAS-3
(12Gb/s))
Performance Mode (split-capable)
Twenty four or sixteen plus eight hard-drive
systems (SATA SSD)
Optical drive
Connectors
Back
NIC
Serial
USB
Video
iDRAC7
Front
USB
Video
External vFlash card
• 3Gb/s and 6Gb/s on SATA drives.
Unified mode daughter card and PERC 9
NOTE: With single
card the hard-drives are located in hard-drive slots 0 through
24 (bay 1).
Performance mode daughter cards and two
NOTE: With two
PERC 9 cards the hard-drives are located in hard-drive slots 0
through 11(bay 1) and 0 through 11(bay 2)
Up to sixteen 2.5 inch, internal, hot-swappable SAS drives and up
to eight Dell PowerEdge Express Flash devices (PCIe SSDs) hard
drives in hard-drive slots 0 through 4 (bay 1), 0 through 4 (bay 2),
and 0 through 15 (bay 3) for SAS/SATA with 2 PCIe Extender Cards,
one Unified Mode Daughter Card, and one PERC 9 Card.
NOTE: Performance mode daughter cards (hard-drive slots 0
through 7 on SAS/SATA) are not supported.
Up to twenty four 2.5 inch, internal, hot-swappable SAS hard
drives.
NOTE: When the backplane is NOT in the split mode with
single internal PERC, the maximum number of SATA/SSDs
are 12 in the right bay (hard drives slots 12 through 23).
Up to sixteen 2.5 inch, internal, hot-swappable SATA drives and up
to eight Dell PowerEdge Express Flash devices (PCIe SSDs) hard
drives in hard-drive slots 0 through 4 (bay 1), 0 through 4 (bay 2),
and 8 through 15 (bay 3) for SAS/SATA.
One optional SATA DVD-ROM drive or DVD+/-RW drive.
Four RJ-45 10/100/1000 Mbps Ethernet
9-pin, DTE, 16550-compatible
Two 4-pin, USB 2.0-compliant
15-pin VGA
One RJ-45 10/100/1000 Mbps Ethernet
Two 4-pin, USB 2.0-compliant
15-pin VGA
vFlash memory card slot
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