Each WSP-Q40GLR4L-ENC transceiver operates at 40Gbps over Single-mode fiber at 1270/1290/1310/1330nm with a maximum reach of 2 Kilometers. All ENET OEM Compatible transceivers are MSA compliant for seamless integration and RoHS compliant for environmental conformity. All ENET transceivers are 100% tested in-house for functionality and compatibility and backed by a Lifetime Replacement Warranty.