![GSC-BX-U-40KM-LW - 1000BASE-BX GBIC Transceiver, 40km, SM, Simplex SC-1 GSC-BX-U-40KM-LW - 1000BASE-BX GBIC Transceiver, 40km, SM, Simplex SC-1](https://cdn11.bigcommerce.com/s-4nx1nz8zp1/images/stencil/400x400/products/10303/33816/33816__06330.1687805814.jpg?c=2)
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The GSC-BX-D-40KM-LW Cisco-compatible Bi-directional GBIC transceiver operates at 1 Gbps over Single-mode fiber at Tx1490nm/Rx1310nm with a maximum reach of 40 kilometers. OEM Compatible transceivers are MSA compliant for seamless integration and RoHS compliant for environmental conformity. All transceivers are 100% tested for functionality and compatibility and backed by a Lifetime Replacement Warranty.