
TP-LINK SM321B-2 1000Base-BX Bi-Directional SFP Module
by TP-Link
£14.22from 2 retailers
TP-LINK's SM321B-2 SFP module delivers reliable, high-speed 1000Base-BX bi-directional data transmission up to 2km. Ideal for network professionals needing a hot-swappable, DDM-enabled solution for extending fiber optic networks.
GTIN06935364010614
EAN6935364010614
MPNSM321B-2
Prices updated 6 Apr 2026
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ICPC UK
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Product Description
TP-LINK SM321B-2 1000Base-BX SFP Module Upgrade your network infrastructure with the TP-LINK SM321B-2, a high-performance 1000Base-BX WDM Bi-Directional SFP module ideal for demanding professionals and network administrators. This hot-swappable module delivers reliable, long-range Gigabit Ethernet connectivity over single-mode fiber, making it perfect for extending your network infrastructure efficiently and cost-effectively. Benefit from advanced features like Digital Diagnostic Monitoring (DDM) for proactive network management and seamless integration with existing SFP-compliant equipment. Features 1000Base-BX standard compliant for high-speed Gigabit Ethernet transmission. Up to 2km transmission distance over 9/125µm single-mode fiber (SMF). WDM Bi-Directional technology for efficient use of fiber optic cables. SFP-MSA compliant for broad compatibility with various network devices. Integrated LC Bi-Directional optical interface connector for easy installation. Supports Digital Diagnostic Monitoring (DDM) for real-time monitoring of key parameters. Hot-swappable design for easy maintenance and minimal downtime. Specifications Brand: TP-LINK Model: SM321B-2 EAN: 6935364010614 Interface: LC Bi-Directional Data Rate: 1 Gbps Transmission Distance: Up to 2km (9/125µm SMF) Wavelength: WDM Bi-Directional (specific wavelengths not provided by supplier) Fiber Type: Single-Mode Fiber (SMF) Compliance: SFP-MSA, SFF-8472 (DDM) Features: DDM, Hot-Swappable
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