The Hewlett Packard Enterprise 25Gb SFP28 SR optical transceiver is designed for high-speed network connectivity. It supports 25Gb data transfer and uses the SFP28 form factor, with short-range SR operation up to 100 meters. This is an authentic Hewlett Packard Enterprise replacement product, delivered in new sealed packaging, suitable for enterprise networking environments such as switches and servers that require reliable optical fiber. The product is identified by SKU 845398-B21 and MPN 845398-B21 and bears EAN 0190017016559.