Count on dependable and cost-efficient Gigabit Ethernet connections over single-mode / multi-mode fiber with this Mini-GBIC module. This HP compatible Gigabit fiber SFP is engineered by StarTech.com to deliver what you need most in your network connections: reliable performance. Built to exacting specifications and fully tested to ensure maximum performance, this high-quality fiber transceiver module can be installed into HP® networking devices that support the J4859C transceiver module, as well as other major brands of networking equipment. This 1000Base-LX SFP delivers Gigabit connectivity over single-mode or multi-mode fiber cable. It provides a dependable and cost-effective way to add, replace or upgrade the ports on your networking equipment, and it's backed by a lifetime warranty. For large-scale requirements and maximum cost-savings, this Gb fiber SFP is also available in a 10-pack: J4859C10PKST. Built for reliable network performance This Gigabit SFP optical transceiver is manufactured by StarTech.com to meet or exceed OEM specifications and comply with the industry's MSA (Multi-Source Agreement) standards. Committed to the highest standards of quality, StarTech.com provides an extensive range of networking products including copper and fiber network cards, fiber media converters, Ethernet switches and wireless products. Fully compatible with HP and other major brands The SM/MM Gigabit SFP is engineered to the highest quality standards and is 100% HP compatible, equivalent to the HP J4859C mini-GBIC. The StarTech.com SFP transceiver is configured and fully tested to ensure it works seamlessly with HP or other major brands of networking equipment. You can be assured that the use of StarTech.com SFP products should not affect the warranty protection of your networking equipment