The two sides are 10Gbps,it doesn’t support 1000Mbps, 2.5Gbps, 5Gbps.Operating temperature 0 to 70°C (32 to 158°F).Jacket Material: PVC(OFNR).10Gb SFP+ to SFP+ DAC Twinax Cable, 0.25 meters (0.82ft) = 1*Twinax Cable + 2 *10G SFP+ Connectors, Passive,3.3V, AWG30. Come with Dust Cover on Each End, and Anti-static Packaging.