The UltraLAN 25G SFP28 transceiver is a high-performance, cost-effective optical module designed for short-range, high-speed links in data centres, enterprise networks, and high-bandwidth environments.
Operating at 850nm with a VCSEL laser, it supports transmission distances of up to 70m on OM3 fiber and 100m on OM4 fiber.
Compliant with SFP28 MSA, SFF-8402, and SFF-847 standards, it ensures compatibility across networking equipment.
With Digital Diagnostic Monitoring (DDM), users gain real-time visibility into operating parameters for improved reliability and management.
Compact, hot-pluggable, and energy-efficient (<1W), it’s built for stable operation in commercial temperature ranges, backed by a 24-month warranty.

Key Features
Supports data rates up to 25.78Gbps
850nm VCSEL laser transmitter
Multi-mode fiber support (MMF)
Transmission distance: 70m (OM3) / 100m (OM4)
Duplex LC connector
Hot-pluggable SFP28 form factor
Digital Diagnostic Monitoring (DDM) support
Low power consumption (<1W)
Operates on single 3.3V power supply
Commercial operating temperature: 0°C to 70°C
Compliant with SFP28 MSA, SFF-8402, and SFF-847 standards
24-month limited warranty

Specifications
Product Code: FIB-SFP-ULSP852XL-CDS1
Description: UltraLAN 25G SFP28 Module – MM 100m 850nm
Data Rate: Up to 25.78Gbps
Connector: Duplex LC
Fiber Type: Multi-mode (OM3/OM4)
Transmission Distance: 70m (OM3) / 100m (OM4)
Laser Type: 850nm VCSEL
Power Consumption: <1W
Power Supply: Single 3.3V
Operating Temperature: 0°C to 70°C
Compliance: SFP28 MSA, SFF-8402, SFF-847
Features: Hot-pluggable, DDM monitoring
Warranty: 24 Months

Linkbasic’s SFP-D25G1 is a 1-metre 25Gbps Twinax Copper DAC with factory-terminated SFP28 connectors for transmission speeds up to 25Gbps. Ideal for high-capacity uplinks.
SKU SFP-D25G1
Manufacturer Linkbasic
Manufacturer Product Code D-30-D-1

Specifications
Cable Length: 1M
Connectors: 2x SFP28 Modules
Data Rate: 25Gbps
Form Factor: SFP
Mode: Copper
Wavelength: None

Linkbasic's SFP-DQB100 copper break out cable offers up to 4x 25Gbps separate channels with an aggregate bandwidth up to 100Gbps.
SKU SFP-DQB100
Manufacturer Linkbasic
Manufacturer Product Code F-30-D-1

Specifications

Cable Length: 1m
Connectors: 1x QSFP28 to 4x SFP28
Data Rate: 100Gbps
Form Factor: Breakout Cable
Mode: Copper
Wavelength: None

Brand: Cudy
Product Code / SKU: CD‑SFP‑SM25
Description: Cudy Single Mode 25G LC SFP28 1310nm 10km – SM25GSA‑10

Product Overview
The Cudy SM25GSA‑10 Single Mode SFP28 Module is designed for long‑distance fibre deployments up to 10km at 25Gbps. Operating at a 1310nm wavelength, this duplex LC module is ideal for providing uplinks between switches, routers, and media converters in enterprise, ISP, and data‑center environments.

With multi‑vendor compatibility, the module integrates seamlessly into existing fibre networks, offering reliable performance and cost‑effective deployment for high‑speed backbone connections.

Highlights
Single mode fibre duplex SFP28 module
Data rate: 25Gbps
Wavelength: 1310nm
Duplex LC connector
Transmission distance: up to 10km
Ideal for long‑distance fibre links
Provides uplink between switches, routers, and media converters
Multi‑vendor compatible

Technical Specifications
Feature Details
Product Code / SKU CD‑SFP‑SM25
Brand Cudy
Model SM25GSA‑10
Type Single Mode SFP28 module
Data Rate 25Gbps
Wavelength 1310nm
Connector Duplex LC
Transmission Distance Up to 10km
Compatibility Multi‑vendor
Warranty Manufacturer warranty

What’s Included
1 × Cudy SM25GSA‑10 Single Mode LC SFP28 Module
Retail packaging
Warranty documentation

Brand: Cudy
Product Code / SKU: CD‑SFP‑MM25
Description: Cudy Multi‑Mode 25G LC SFP28 850nm 100m – SM25GMA‑01

Product Overview
The Cudy SM25GMA‑01 Multi‑Mode SFP28 Module is designed for short‑distance fibre deployments up to 100m at 25Gbps. Operating at 850nm wavelength, this duplex LC module is ideal for providing uplinks between switches, routers, and media converters in enterprise or data‑center environments.

For optimal performance at 25Gbps over 100m, the use of OM4 fibre cable is recommended. With multi‑vendor compatibility, the module integrates seamlessly into existing fibre networks, offering reliable performance and easy deployment.

Highlights
Multi‑Mode fibre SFP28 module
Data rate: 25Gbps
Wavelength: 850nm
Duplex LC connector
Transmission distance: up to 100m
Recommended fibre: OM4 for full 25Gbps over 100m
Ideal for short‑distance fibre links
Provides uplink between switches, routers, and media converters
Multi‑vendor compatible

Technical Specifications
Feature Details
Product Code / SKU CD‑SFP‑MM25
Brand Cudy
Model SM25GMA‑01
Type Multi‑Mode SFP28 module
Data Rate 25Gbps
Wavelength 850nm
Connector Duplex LC
Transmission Distance Up to 100m
Recommended Fibre OM4
Compatibility Multi‑vendor
Warranty Manufacturer warranty

What’s Included
1 × Cudy SM25GMA‑01 Multi‑Mode 25G LC SFP28 Module
Retail packaging
Warranty documentation