SKU: 3354468794

Cudy 1.25G Bi-Directional Single-Mode SFP Transceiver, 20km, Single LC Connector

Sale price$113.70 Regular price$126.33
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Cudy 1.25G Bi-Directional Single-Mode SFP Transceiver, 20km, Single LC ConnectorCudy's CD SFP SMB is your answer for efficient and cost effective single mode fibre deployments! These bi directional modules redefine connectivity standards with a powerful design optimised for 1. 25 Gbps transmission over distances of up to 20km. The CD SFP SMB modules are sold as a pair and feature a smart SFP package with LC connectors, ensuring cross vendor compatibility. What distinguishes them is their novel application of bi directional

Cudy's CD-SFP-SMB is your answer for efficient and cost-effective single-mode fibre deployments! These bi-directional modules redefine connectivity standards with a powerful design optimised for 1.25 Gbps transmission over distances of up to 20km.

The CD-SFP-SMB modules are sold as a pair and feature a smart SFP package with LC connectors, ensuring cross-vendor compatibility. What distinguishes them is their novel application of bi-directional technology, which enables duplex transmission on a single fibre by utilising two distinct wavelengths for TX and RX on the same optical strand. This not only improves performance but also significantly lowers installation costs.

Choose between the SM100GSB-20A with a 1310nm FP laser and a 1550nm PIN photodetector or the SM100GSB-20B with a 1550nm DFB laser and a 1310nm PIN photodetector to meet your specific requirements.

These modules provide dependable performance because they are powered by a single +3.3V power supply and have an LVPECL-compatible data input/output interface. The CD-SFP-SMB provides a strong and secure connection thanks to its low EMI and excellent ESD protection. These modules prioritise environmental sustainability while adhering to RoHS and SFF8472 standards.

FEATURES:

SFP package with LC connector
SM100GSB-20A 1310nm FP Laser and 1550nm PIN photodetector
SM100GSB-20B 1550nm DFB Laser and 1310nm PIN photodetector
Up to 20 km transmission on SMF
+3.3V single power supply
LVPECL-compatible data input/output interface
Low EMI and excellent ESD protection
Compatible with RoHS
Compatible with SFF8472

SPECIFICATIONS:

Ethernet Channel Speed 1.25 GB/s
Fibre Channel Speed 1.06 Gb/s
Form Factor SFP (BiDi)
Mode Single Mode
Supported Distance 20km
Wavelength 1310nm / 1550nm
Optical Eye Diagram IEEE 802.3z and ANSI Fibre Channel Compatible
Input Differential Impendence (Min) (Max) 90, 110 Ohm
Data Input Swing Differential (Min) (Max) 500, 2400 mV
Output differential impendence (Typ) 100 Ohm
Data Input Swing Differential (Min) (Max) 370, 2000 mV
Supply Voltage (Min) (Max) 3.15, 3.45 V
Operating Case Temperature (Min) (Max) 0, 70 ℃
Voltage 3-15 ~ 3.45 V
Bias Current 10 ~ 80 mA
Tx Power -9 ~ -3 dBm
Rx Power -26~-3 dBm

WHAT’S IN THE BOX:

  • Cudy 1.25Gbps BIDI SFP Optical Transceiver 20Km DDM x1
  • Installation Guide x1
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3354468794

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 322 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
B
Verified Purchase
Bri M.
Carnegie, US
★★★★★ 5
Flat Plug = Game Changer
Size: 6 Ft(2 prong plug), Color: Black
This is exactly what I needed to clean up my space. The flat plug sits flush against the wall, the long cord gives flexibility, and having multiple outlets + USB ports keeps everything in one place without the mess. It’s a 3 to 2 plug for homes that the electrical hasn’t been updated to 3 prong plugs. It feels solid, not cheap, and the surge protection adds that extra peace of mind. Perfect for a clean, organized setup that actually works.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
M
Verified Purchase
Max Cat
Dallas, US
★★★★★ 5
Durable and well made
Size: 6 Ft, Color: White
Been using for over a year for a plug behind the fridge. Works well, reliable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
A
Verified Purchase
Allen Jennings
Louisville, US
★★★★★ 5
Good product
Size: 6 Ft, Color: Black
Works perfect, good price and quality. Would buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
J
Verified Purchase
J.M.Hunter
Los Angeles, US
★★★★★ 5
Useable and pleasant looking
Size: 6 Ft, Color: Black
There's probably not a lot you can say about power strips because they all just do what they're supposed to do. However I needed something that would give me more power Outlets in the small bathroom sink counter space than I had. I tried several of the ones that I had but they either turned out too bulky, thick cords or just too intrusive for what I needed. That's when I came across this little gem. It comes with six Outlets, three USB inserts, and a smaller less thick power cord, and the end has a 30 degree flat angle so that it lays flat against the wall when plugged in instead of sticking straight out like most cords. Most importantly to me was it fit snuggly behind the sink faucet and tightly against the wall. All and all it made the entire application look as built in as possible. I know this seems as if a lot to say about a simple power strip but I've seem other bathroom counter sink tops cluttered with all sorts of electrical devices vying for their own plug in space and I don't need to tell you what that looks like. This is just a simple little power strip that was able to turn a messy looking counter top into a lot less intrusive looking mess.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2026
N
Verified Purchase
Nate
Belleville, US
★★★★★ 4
It’s a power strip
Size: 6 Ft-2 Pack, Color: Black
Works fine plug seams a bit thin but we will see
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026

recommand products