Biostar H61MLC2 Manual page 14

Motherboard Manual
PEX16_1: PCI-Express Gen3 x16 Slot
PCI-Express 3.0 compliant.
-
- Maximum theoretical realized bandwidth of 16GB/s simultaneously per
direction, for an aggregate of 32GB/s totally.
- PCI-E 3.0 is supported by Core i7-3xxx / i5-3xxx CPU.
PEX1_1: PCI-Express Gen2 x1 Slot
- PCI-Express 2.0 compliant.
- Data transfer bandwidth up to 500MB/s per direction; 1GB/s in total.
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