• TP-Link 1000Base-BX WDM Bi-Directional SFP Module (TL-SM321A-2) TX: 1550nm, RX: 1310nm, Up to 2KM Transmission Distance, LC Simplex
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TP-Link 1000Base-BX WDM Bi-Directional SFP Module (TL-SM321A-2) TX: 1550nm, RX: 1310nm, Up to 2KM Transmission Distance, LC Simplex

TP-Link 1000Base-BX WDM Bi-Directional SFP Module (TL-SM321A-2) TX: 1550nm, RX: 1310nm, Up to 2KM Transmission Distance, LC Simplex

$29.00
$29.00
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  • 30 days change of mind return policy
  • Manufacture Warranty

Change of Mind Returns:

We want you to be happy with your purchase. That’s why we offer a 30-day change of mind return policy, allowing you to request a return for a refund or exchange within 30 days of receiving your order. Please note that return shipping costs will be deducted from the refund amount as follows: 

For small, single items under 1kg with free shipping, a $10.70 charge will be deducted.

The return postage cost will be deducted for other free shipping orders based on the item’s weight and dimensions.

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TP-Link 1000Base-BX WDM Bi-Directional SFP Module (TL-SM321A-2) TX: 1550nm, RX: 1310nm, Up to 2KM Transmission Distance, LC Simplex


  • TP-Link 1000Base-BX WDM Bi-Directional SFP Module (TL-SM321A-2)
  • Adopts the latest standard 1000Base-BX
  • Up to 2 km transmission distance in 9/125 μm SMF (Single-Mode Fiber)
  • Compatible with Small Form Pluggable Multi-Source Agreement (SFP-MSA)
  • Supports Digital Diagnostic Monitoring (DDM)
  • Supports Hot Swappable
  • HARDWARE FEATURES
  • DDM Yes
  • SFP-MSA Yes
  • Hot Swappable Yes
  • MEDIA CONVERTER & MODULE
  • Standards and Protocols IEEE 802.3z, TCP/IP
  • Wave Length TX: 1550 nm
  • RX: 1310 nm
  • Power Supply 3.3 V
  • Safety & Emission FCC, CE
  • Cabel Single-Mode Fiber
  • Fiber Type 9/125 μm Single-Mode
  • Max. Cable Length 2 KM
  • Data Rate 1.25 Gbps
  • Port Type LC Simplex
  • Environment Operating Temperature: 0–70 °C (32–158 °F)
  • Storage Temperature: -40–85 °C ( -40–185 °F)
  • Operating Humidity: 10–90% RH, Non-Condensing
  • Storage Humidity: 5–90% RH, Non-Condensing