Dell Vostro 3902 Mini Tower (Late 2013) - Manual (Page 35)

System Information
Chipset Intel H81
BIOS chip (NVRAM) 8M SPI Flash ROM
Expansion Bus
Bus speed:
PCI Express PCIe 2.0 at speeds upto 5.0 GT/s
SATA 0,1 SATA Gen 3 at 6 GB/s and 2,3 SATA Gen 2 at 3
GB/s
USB 80 Mbps
Cards Vostro 3800 Vostro 3900 series
PCIe x16 one half-height card one full height card
PCIe x1 up to two half-height cards up to two full height cards
PCI one half height card one full height card
Drives
Externally accessible:
5.25 inch drive bays one
Internally accessible:
3.5 inch drive bays one
External Connectors
Audio:
Back panel three connectors
Front Panel two front-panel connectors for headphone and
microphone
Network one RJ45 connector
USB:
Front panel • two USB 2.0 connectors
Back panel four USB 2.0 connectors, two USB 3.0 connectors
PS 2 used to connect a PS 2 compatible keyboard or
mouse
Video • one 15-hole VGA connector
• one 19-pin HDMI connector
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