Cisco QSFP-H40G-CU5M | 40G QSFP+ DAC | 40GBASE-CR4 | copper (no wavelength) | reach 5m | QSFP+ to QSFP+, passive twinax Condition:New Uses MPO‑12 connectors per port

Uses MPO‑12 connectors per port for parallel optics

Suitable for row-to-row or small room-to-room spans up to 50 m while maintaining high-density patching

QSFP28 SR4 runs at 850 nm over MMF with MPO-12 connector

providing two 400G DR4 links at 1310 nm over single‑mode fiber up to 500 m

Cisco QSFP-H40G-CU5M | 40G QSFP+ DAC | 40GBASE-CR4 | copper (no wavelength) | reach 5m | QSFP+ to QSFP+, passive twinax Condition:New Uses MPO‑12 connectors per portDirect attach copper (twinax) QSFP+ to QSFP+ cable for 40GBASE CR4 links. Passive construction ensures ultralow latency, zero power consumption, and straightforward plugandplay setup for connections up to 5 meters.