HP NC6770 PCI-X 1000-SX Server Adapter - Manual (Page 16)

Specifications
Fiber Cable Specifications
The NC6770 uses 1000Base-SX fiber cable to connect to the network.
Table C-2: Fiber Cable Maximum Distances for 1000Base-SX
Mode Size Max Distance
Multimode 62.5/125
μ
m 220 meters
Multimode 50/125
μ
m 550 meters
C-2 Compaq NC6770 PCI-X Gigabit Server Adapter User Guide