Dell PowerEdge R820, Owner'S Manual

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Drives
Hard drives
Eight–hard-drive systems Up to eight 2.5 inch, internal, hot-swappable SAS, SATA
or Nearline SAS hard drives in hard-drive slots 0
through 7.
Twelve–hard-drive systems Up to eight 2.5 inch, internal, hot-swappable SAS,
SATA, SATA SSD or Nearline SAS hard drives in hard-
drive slots 0 through 7 (hard-drive bay 1) and up to four
2.5 inch Dell PowerEdge Express Flash devices (PCIe
SSDs) in hard-drive slots 0 through 3 (hard-drive bay 2).
Sixteen or eight plus eight–hard-drive systems Up to sixteen 2.5 inch, internal, hot-swappable SAS,
SATA, SATA SSD or Nearline SAS hard drives in hard-
drive slots 0 through 15 or 0 through 7 and 0 through 7.
Optical drive One optional SATA DVD-ROM drive or DVD+/-RW drive.
NOTE: DVD devices are data only.
Connectors
Back
NIC Four 10/100/1000 Mbps or two 10/100/1000 Mbps and two
100 Mbps/1 Gbps/10 Gbps
Serial One 9-pin, DTE, 16550-compatible
USB Two 4-pin, USB 2.0-compliant
Video One 15-pin VGA
iDRAC7 One RJ-45 10/100/1000 Mbps Ethernet
Front
USB Two 4-pin, USB 2.0-compliant
Video One 15-pin VGA
External vFlash card vFlash memory card slot
NOTE: The card slot is available for use only if the
iDRAC7 Enterprise license is installed on your
system.
Internal
USB One 4-pin, USB 2.0-compliant
Internal Dual SD Module (IDSDM) Two optional flash memory card slots with the internal SD
module
NOTE: One card slot is dedicated for redundancy.
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