Brand: Cudy Product Code / SKU: CD‑SFP‑SMB Supplier Code: SM100GSB‑20AB Model: Single Mode 1.25G LC Bi‑Directional SFP 20km (Pair) Description The Cudy CD‑SFP‑SMB is a pair of bi‑directional transceiver modules designed for single‑mode fibre deployments up to 20km. Supporting 1.25Gbps data rates, these modules reduce installation costs by utilising a single fibre strand for duplex transmission, with unique wavelengths for TX (1310nm) and RX (1550nm). Compact and hot‑swappable, the CD‑SFP‑SMB is ideal for long‑distance fibre uplinks between switches, routers, and media converters. Note: Modules are multi‑vendor compatible. Features 1.25Gbps Data Rate – Stable fibre connectivity Bi‑Directional Design – Duplex transmission over a single fibre strand Single Mode Fibre – Optimised for long‑distance links LC Connector – Standardised interface for easy deployment 20km Supported Distance – Ideal for backbone and metro connections Dual Wavelengths – TX: 1310nm, RX: 1550nm SFP Form Factor (BiDi) – Compact and hot‑swappable design Multi‑Vendor Compatible – Flexible integration across platforms What’s Included 1 × Pair of Cudy CD‑SFP‑SMB Bi‑Directional 1.25G LC SFP Modules Free Delivery: Orders with a total cart value above R1,500 qualify for free courier delivery via our eco shipping method (1–3 business days). Orders Under R1,500 & Regional Areas: Courier fees are calculated automatically at checkout based on your specific postal code and the total weight of your order before payment.