This Finisar SFP+SR Transceiver is a 10Gb/s 850nm Multimode 400m Network Port module that is brand new never used. It is compatible with various switches and hubs, making it a versatile option for your networking needs. The module is manufactured by Finisar, a reliable brand known for their high-quality networking products. With this SFP+SR Transceiver, you can expect fast and stable transfer speeds that can support your enterprise networking requirements.