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10Gtek a Pair of 10G SFP+ Bidi Transceiver, LC Single-Mode Single Fiber Module, 10GBASE-BIDI 1270nm/1330nm for Cisco SFP-10G-BX20D-I/SFP-10G-BX20U-I, Ubiquiti UniFi, Mikrotik, and More, DOM, 20km
10Gtek

10Gtek a Pair of 10G SFP+ Bidi Transceiver

Bottom line: The 10Gtek a Pair of 10G SFP+ Bidi Transceiver ($40.79 on Amazon as of 2026-10-06): Sold as a matched BX-D/BX-U pair, ready for a single-fiber 20km link; main trade-off: single-mode only, so it won't run over existing OM3/OM4 multimode fiber.

$40.79

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Buy on Amazon — $40.79 Compare to similar networking

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For home networking and Wi-Fi gear, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Sold as a matched BX-D/BX-U pair, ready for a single-fiber 20km link
  • ✓ 10GBASE-BIDI runs full 10Gbps over one LC strand, halving fiber runs
  • ✓ Compatible with Cisco SFP-10G-BX20D-I/U, Ubiquiti UniFi, and Mikrotik
  • ✓ DDM/DOM reports TX/RX signal levels in real time to flag link issues
  • ✓ Backed by 3-year warranty, 30-day returns, and lifetime tech support

Cons

  • ✗ Single-mode only, so it won't run over existing OM3/OM4 multimode fiber
  • ✗ BiDi pair must stay matched; losing one module means replacing a link end
  • ✗ 0-70C operating range rules out outdoor or unconditioned enclosures
  • ✗ 20km max reach; 40km+ or long-haul spans need a different module

Manufacturer description

10Gtek's BIDI 10G SFP+ Transceiver used in optical communications for both telecommunication and data bidirectional communications applications. Compatible Cisco P/N: SFP-10G-BXD-I/SFP-10G-BXU-I 10G-SFP Bidirectional for 10km Wave length: Up: TX1270nm/RX1330nm; Down: TX1330nm/RX1270nm Data Rate: 10Gbps Reach: 10~20km Form Factor: SFP+ Fiber Type: SMF Tx Power(dBm): -5~-0dBm Rx Sens.(dBm): <-14dBm Temp.(°C): 0~70 Applications: Router ASR 9000 Series Router: A9K-24X10GE-SE A9K-24X10GE-TR A9K-36X10GE-SE A9K-36X10GE-TR A9K-MPA-8X10GE A9K-RSP440-TR A9K-RSP440-SE ASR-9001 ASR9000v Series Router…

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SpecPicks Verdict

SpecPicks scored 10Gtek a Pair of 10G SFP+ Bidi Transceiver using a rating × review-volume × price-fit model applied to published specs and reviews across the networking category. 10Gtek's networking lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for networking of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • 10GBASE-BIDI Bidirectional SFP+ to single LC Optical transceiver module, Single Mode, Wave length: Up: TX1270nm/RX1330nm; Down: TX1330nm/RX1270nm, DDM, up to 20km over single LC.
  • Wide Compatibility - Compatible for Cisco SFP-10G-BX20D-I/SFP-10G-BX20U-I, Ubiquiti UniFi UACC-OM-SM-10G-S-2, Mikrotik and Other Open Switches. It is widely used in fiber, switches, routers, NIC,server or other fiber optic equipments with 10G SFP+ ports for plug and play, support fully hot-pluggable.
  • 100% Usable - In 10Gtek's Signal Integrity Lab, we 100% passed tested. Each transceiver is individually tested on switches before delivery.
  • Superior DDM Function - DDM allows you to monitor the critical information concerning the status of the transmitted and received signals of the transceivers in real-time to find out some potential problems.
  • Perfect After-sales Service - Backed by 10Gtek 30 Days Free-returned, 3-Year Free Warranty and Lifetime Technology Support. 10Gtek is a manufacturer of transceiver, customized service is available

Full Specifications

Brand10Gtek
Weight10g
Package Dimensions‎3.9 x 2.09 x 0.28 inches
Full listing title10Gtek a Pair of 10G SFP+ Bidi Transceiver, LC Single-Mode Single Fiber Module, 10GBASE-BIDI 1270nm/1330nm for Cisco SFP-10G-BX20D-I/SFP-10G-BX20U-I, Ubiquiti UniFi, Mikrotik, and More, DOM, 20km

Ready to buy?

10Gtek a Pair of 10G SFP+ Bidi Transceiver, LC Single-Mode Single Fiber Module, 10GBASE-BIDI 1270nm/1330nm for Cisco SFP-10G-BX20D-I/SFP-10G-BX20U-I, Ubiquiti UniFi, Mikrotik, and More, DOM, 20km is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $40.79

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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10Gtek a Pair of 10G SFP+ Bidi Transceiver, LC Single-Mode Single Fiber Module, 10GBASE-BIDI 1270nm/1330nm for Cisco SFP-10G-BX20D-I/SFP-10G-BX20U-I, Ubiquiti UniFi, Mikrotik, and More, DOM, 20km
$40.79
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