Cisco QSFP-H40G-CU1M 40G QSFP+ Passive Direct Attach Copper Cable

Save significantly over new list price on this genuine Cisco QSFP-H40G-CU1M 40GBASE-CR4 passive copper DAC cable. Professionally tested and backed by Reef Telecom's industry-leading 10-year warranty, this refurbished cable delivers the same reliable 40Gbps performance as new — at a fraction of the cost.

Technical Specifications

• Part Number: QSFP-H40G-CU1M
• Cable Type: 40GBASE-CR4 Passive Direct Attach Copper (DAC) Twinax
• Data Rate: 40 Gbps
• Length: 1 meter (3.3 ft)
• Connectors: QSFP+ to QSFP+
• Wire Gauge: 30 AWG
• Impedance: 100 Ohm
• Hot-Swappable: Yes — plug and play with zero downtime
• Standards: IEEE 802.3ba, QSFP+ MSA, SFF-8436 compliant

Compatibility

Works with a wide range of Cisco platforms including Catalyst 9200, 9300, 9400, 9500, 9600, 3850, and 6800 series as well as Nexus 3000, 5000, 6000, 7000, and 9000 series switches. Also compatible with Cisco UCS, ASR 9000, and CRS routers.

Ideal Use Cases

Designed for short-distance 40GbE connectivity within a rack or between adjacent racks in data centers. A cost-effective, low-latency alternative to fiber optic assemblies for point-to-point switch and server interconnects.

Free shipping on orders over $300. Every refurbished cable from Reef Telecom is thoroughly inspected, tested, and covered by our 10-year warranty for complete peace of mind.

Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.

All products include our industry-leading 10 Year Warranty backed by Reef Telecom.