100% compatibility with Cisco QSFP-4SFP10G-CU5M guaranteed - StarTech.com lifetime warranty on all StarTech.com SFP cables - Designed and tested to perform identically to QSFP-4SFP10G-CU5M - QSFP+ breakout cable length is 5 m (16.4 ft) - Breakout cable tested to meet or exceed OEM specifications - QSFP+ Twinax breakout cable complies with MSA industry standards - Breakout cable has low power consumption: < 1 watt - Hot-swappable with fiber optic QSFP+ breakout cables