S-35LC20D MikroTik Compatible 1G SFP BiDi 20km SMF

The S-35LC20D is a 1G SFP optical transceiver compatible with MikroTik platforms.

• Form Factor: SFP
• Data Rate: 1G
• Protocol: BiDi
• TX Wavelength: 1310nm
• RX Wavelength: 1550nm
• Fiber Type: SMF
• Reach: 20km
• Connector: Simplex LC
• Standard: 1000BASE-BX20 (BiDi)
• OEM Equivalent: S-35LC20D

Compatibility: The S-35LC20D-TFO is TenFour Optics' compatible equivalent of the MikroTik S-35LC20D, coded per order for MikroTik platforms. Add your switch model and OS release in the order notes, or email 10.4@tenfouroptics.com, and we confirm coding before it ships.

Pairs with: S-53LC20D — BiDi runs over a single fiber strand; this module (TX 1310nm / RX 1550nm) pairs with one S-53LC20D at the far end. MikroTik sells the two together as the S-3553LC20D kit.

Tested & Proven: Every TenFour Optics part is coded, tested, and verified before shipment — see Tested & Proven.

OEM-compatible and MSA-compliant. Compliance documentation (RoHS declaration, IEC 60825-1 laser classification) is available on request for project quotes. Digital Diagnostic Monitoring (DDM/DOM) supported. Every module is tested for traffic conformity per supported layer 2/3 protocols, DOM threshold verification, EEPROM/MSA value verification, serial number verification, and optical cleanliness before shipment.

Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. In-stock items ship same or next business day.