Table 21. Drives
Feature
Specification
Externally Accessible
5.25–inch drive bays
two
Internally accessible
USB 2.0:
3.5–inch SATA drive bays
two
2.5–inch SATA drive bays ( using interposer in
3.5" bay)
four
Table 22. External Connectors
Feature
Specification
Audio:
front panel
two connectors for microphone and headphone
back panel
two connectors for line-out and line-in/microphone
Network Adapter
one RJ-45 connector
Serial
one 9-pin connector; 16550 C compatible
Parallel
one 25-pin connector (optional for mini-tower and
desktop)
USB 2.0:
front Panel
two
back Panel
four
USB 3.0:
front Panel
two
back Panel
two
Video
one 15-pin VGA connector (x1), 20-pin DisplayPort
connector (x2)
NOTE: Video connectors may vary based on the
graphics card selected.
Table 23. System Board Connectors
Feature
Specification
PCI 2.3 data width (maximum) — 32 bits
one 120-pin connector
PCI Express x1 data width (maximum) — one PCI Express
lane
one 36-pin connector
PCI Express x16 (wired as x4) data width (maximum) —
four PCI Express lanes
one 164-pin connector
57