Dell XPS 8300 (Late 2010) - Manual (Page 68)

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Specifications
Internal Connectors
Mini‑PCIe one mini slot
PCI Express x1 three 36‑pin connectors
PCI Express x16 one 164‑pin connector
SATA four 7‑pin connectors
External Connectors
Audio:
Top panel one stereo headphones/
speakers connector
and one microphone‑in
connector
Back panel six connectors for 7.1
channel support
S/PDIF one digital S/PDIF
(optical) connector
External Connectors
eSATA one back‑panel
connector
Network adapter one RJ45 connector
USB two top‑panel, two
front‑panel, and four
back‑panel USB 2.0
compliant connectors
one back‑panel and
one front‑panel USB 3.0
compliant connectors
(optional)
VGA one 15‑hole connector
HDMI one 19‑pin connector
Media Card
Reader one 19‑in‑1 card reader
with four slots