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Description

StarTech QSFPH40GCU3M 40Gbps Direct Attach Cable

Overview

The StarTech QSFPH40GCU3M is a 3-meter (9.8 ft) passive direct attach copper cable designed for high-speed 40 Gigabit Ethernet connections. It provides a cost-effective, low-power solution for short-reach interconnects between network devices like switches, servers, and storage systems within a rack or between adjacent racks. This cable is ideal for data centers and enterprise environments requiring robust 40Gbps connectivity without the complexity or cost of active optical modules.

Compatibility

This cable is engineered to be 100% Cisco QSFP-H40G-CU3M compatible, ensuring seamless integration with Cisco switches and other networking equipment that utilize QSFP+ ports. It supports 40 Gbps network speeds and maintains a 100 Ohm impedance, critical for signal integrity in high-speed data transmission. It is suitable for any deployment requiring a direct connection between two QSFP+ ports.

Installation Notes

The cable operates within a temperature range of 0°C to 70°C (32°F to 158°F), making it suitable for standard data center environments. Power consumption is minimal, less than 0.1W per end, drawing 3.3V DC. The PVC jacket material offers flexibility and durability for typical rack installations. Product dimensions are 9.8 ft (3.0 m) in length, 0.7 in (1.8 cm) in width, and 0.5 in (1.3 cm) in height, with a product weight of 9.2 oz (261.0 g).

What's in the Box

  • 1 - 3m 40Gbps QSFP+ Direct Attach Cable
Specifications
Cable Length: 9.8 ft [3 m]
Compatible Brand: Cisco
Cable Jacket Material: PVC
Maximum Data Transfer Rate: 40Gbps
Impedance: 100 Ohm
Compatible Networks: 40 Gbps
Power Consumption: < 0.1 W (per end)
Connector A: 1 - QSFP+
Connector B: 1 - QSFP+
Power Output Voltage: 3.3V DC
Operating Temperature: 0C to 70C
Storage Temperature: -40C to 80C
Product Length: 9.8 ft [3.0 m]
Product Width: 0.7 in [1.8 cm]
Product Height: 0.5 in [1.3 cm]
Weight of Product: 9.2 oz [261.0 g]
Warranty: Lifetime
Brand: StarTech
MPN: QSFPH40GCU3M
Type: Optical Transceiver
Connectivity: Ethernet
Power: 3V DC
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StarTech 100% Cisco QSFP-H40G-CU3M Compatible 3M - QSFPH40GCU3M

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