The Huawei QSFP-40G-CU3M Compatible 40G QSFP+ Passive Direct Attach Copper Twinax Cable is designed for use in 40GBASE Ethernet. It provides a QSFP+ to QSFP+ copper direct-attach solution. This cable is compliant with IEEE 802.3ba Ethernet standard and QSFP MSA Compliant.
With these features, this easy to install, high speed, cost-effective direct attach copper twinax cable is suitable for short-distance connectivity within a rack or between adjacent racks in data centers.

The comparison of QSFP-40G-CU1M, QSFP-40G-CU3M and QSFP-40G-CU5M.
| Product Code | QSFP-40G-CU1M | QSFP-40G-CU3M | QSFP-40G-CU5M |
| Part Number | 02310MUG | 02310MUH | 02310MUJ |
| Description | QSFP+,40G,High Speed Direct-attach Cables,1m,QSFP+38M,CC8P0.254B(S),QSFP+38M,Used indoor | QSFP+,40G,High Speed Direct-attach Cables,3m,QSFP+38M,CC8P0.32B(S),QSFP+38M,Used indoor | QSFP+,40G,High Speed Direct-attach Cables,5m,QSFP+38M,CC8P0.40B(S),QSFP+38M,Used indoor |
| Connector Type | QSFP+ to QSFP+ | QSFP+ to QSFP+ | QSFP+ to QSFP+ |
| Cable Length | 1m(3.28ft) | 3m(9.84ft) | 5m(16.4ft) |
| Max Data Rate | 40Gbps | 40Gbps | 40Gbps |
| Wire AWG | 28AWG | 28AWG | 26AWG |
| Product Code | QSFP-40G-CU3M |
| Part Number | 02310MUH |
| Description | QSFP+,40G,High Speed Direct-attach Cables,3m,QSFP+38M,CC8P0.32B(S),QSFP+38M,Used indoor |
| Huawei Genuine | QSFP-40G-CU3M |
| Connector Type | QSFP+ to QSFP+ |
| Cable Type | Passive Copper Cable |
| Cable Length | 3m(9.84ft) |
| Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | 40G InfiniBand 8x DDR, 4x QDR, 10G/40Gigabit Ethernet, Fibre Channel |
| Max Data Rate | 40Gbps |
| Wire AWG | 28AWG |
| Jacket Material | PVC(OFNR) |
| Product Series | CE7800 |
| UOM | PCS |
| Pack Weight(kg) | 0.65 |
| Pack Volume(m^3) | 0.005159 |
