100% compatibility with Cisco QSFP-H40G-AOC15M guaranteed - StarTech.com lifetime warranty on all StarTech.com SFP cables - Designed and tested to perform identically to Cisco QSFP-H40G-AOC15M - SFP+ AOC fiber cable length is 15 m (49 ft) - SFP+ (Mini-GBIC) cable tested to meet or exceed OEM specifications - SFP+ active optical cable complies with MSA industry standards - This AOC cable has low power consumption: < 1.5 W - Hot-swappable with other fiber optic SFP cables