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