Dell OptiPlex GX280 - Manual (Page 17)

connector size 120 pins
connector data width (maximum) 32 bits
PCI Express
connector one x16
connector size 164 pins
connector data width (maximum) 16 PCI Express lanes
Small Desktop computer half-length cards supported
PCI
connectors one or two (depending on purchase)
connector size 120 pins
connector data width (maximum) 32 bits
PCI Express
connector one x16 and an optional x1
connector size 120 pins (x16) and an optional 36 pins
(x1)
connector data width (maximum) 16 PCI Express lanes (x16) and an
optional one PCI Express lane (x1)
Desktop computer half-height cards supported
half-length, full-height cards supported
with optional with card cage
PCI
connectors two (without card cage)
two (with card cage)
connector size 120 pins
connector data width
(maximum)
32 bits
PCI Express
connectors one x16
connector size 120 pins (x16)
connector data width 16 PCI Express lanes (x16)
Small Mini-Tower full-height cards supported
PCI
connectors three
connector size 120 pins
connector data width (maximum) 32 bits
PCI Express
connector one x1 and one x16
connector size 36 pins (x1) and 120 pins (x16)
connector data width (maximum) one PCI Express lane (x1) and 16 PCI
Express lanes (x16)
Mini-Tower full-height cards supported
PCI
connectors two