StarTech.com MSA Uncoded Compatible 2m 40G QSFP+ to QSFP+ Direct Attach Breakout Cable Twinax, 40 GbE QSFP+ Copper DAC 40 Gbps Low Power Passive Transceiver Module DAC, 40GE Breakout Cable - Lifetime Warranty (QSFPMM2M) - Direct attach cable - QSFP+ to QSFP+ - 2 m - twinaxial - black

The QSFPMM2M is an MSA compliant direct-attach copper QSFP+ cable that's designed, programmed and tested to work in 40G network deployments. It delivers dependable 40 GbE connectivity over copper cabling, which is a cost-effective alternative to fiber-optic cable setups. This passive Twinax cable supports 40 Gigabit Ethernet applications connected through QSFP+ (Mini-GBIC) ports. The cable is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions. At 2 meters long and designed for high-speed performance, this copper QSFP+ cable is ideal for medium-distance applications such as across-rack network switch or server connections.