The HP 453154-B21 1GB SFP RJ-45 SFP Module 100% HP Pluggable (SFP) are based on the SFP Multi Source Agreement. It is compatible with the 1GB Ethernet standards. This module is for transmission at 1 GB over universal twisted pair (UTP) cable. It supports Ethernet standards which make it ideally suited for data communications. It offers customers a wide variety of Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and switch-to-switch applications.