Sate Optics provides compatible 25G SFP28 Loopback Modules for network testing, equipment diagnostics and optical interface verification in modern data center and enterprise network environments.
Our 25G SFP28 Loopback solutions are designed to simulate optical transceiver connections, enabling engineers to perform port testing, system validation, troubleshooting and performance verification on 25G Ethernet equipment.
Compatible 25G SFP28 Loopback Modules support high-density network testing applications including switch validation, server connectivity testing and optical link verification.
Sate Optics delivers reliable 25G testing solutions for data centers, enterprise networks, cloud computing and high-performance networking environments.
25G SFP28 Loopback
| Part Number | Model No. | Picture | Data Rate(Mbps) | Wavelength | Media Type | Reach | TX Power(dBm) | RX Sens.(dBm) | Temp.(℃) | Note | Datasheet |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ST-25G-SFP28-LB0-0 | 25G-SFP28-LB0-0 | ![]() |
10G | / | Copper | / | 0dBm | 0W | -20°C~85°C | 25G Passive Loopback | |
| ST-25G-SFP28-LB0-3 | 25G-SFP28-LB0-3 | ![]() |
10G | / | Copper | / | 0dBm | 3W | -20°C~85°C | 25G Passive Loopback | |
| ST-25G-SFP28-LB0-2.5 | 25G-SFP28-LB0-2.5 | ![]() |
10G | / | Copper | / | 0dBm | 2.5W | -20°C~85°C | 25G Passive Loopback | |
| ST-25G-SFP28-LB0-1.5 | 25G-SFP28-LB0-1.5 | ![]() |
10G | / | Copper | / | 0dBm | 1.5W | -20°C~85°C | 25G Passive Loopback | |
| ST-25G-SFP28-LB0-2 | 25G-SFP28-LB0-2 | ![]() |
10G | / | Copper | / | 0dBm | 2W | -20°C~85°C | 25G Passive Loopback | |
| ST-25G-SFP28-LB3-0 | 25G-SFP28-LB3-0 | ![]() |
10G | / | Copper | / | 3dBm | 0W | -20°C~85°C | 25G Passive Loopback | |
| ST-25G-SFP28-LB5-1 | 25G-SFP28-LB5-1 | ![]() |
10G | / | Copper | / | 5dBm | 1W | -20°C~85°C | 25G Passive Loopback | |
| ST-25G-SFP28-LB5-0 | 25G-SFP28-LB5-0 | ![]() |
10G | / | Copper | / | 5dBm | 0W | -20°C~85°C | 25G Passive Loopback |




