ST-25G-SFP28-LR
Sate Optics ST-25G-SFP28-LR is a 25Gbps SFP28 LR compatible optical transceiver designed for long-distance Ethernet connectivity over single mode fiber.
The module uses a 1310nm DFB laser transmitter and high-performance receiver to support 25G transmission up to 10km through duplex LC single mode fiber. It provides reliable and cost-effective connectivity for data center networks, enterprise infrastructure, and telecom applications.
The ST-25G-SFP28-LR compatible transceiver complies with SFP28 MSA standards and is suitable for switch-to-switch, server-to-switch, and high-speed Ethernet deployments requiring stable 10km optical links.
More in 25G SFP28 Optical Transceivers
| Part Number | Model No. | Picture | Data Rate(Mbps) | Wavelength | Media Type | Reach | TX Power(dBm) | RX Sens.(dBm) | Temp.(℃) | Note | Datasheet |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ST-25G-SFP28-SR | 25G SFP28 SR Compatible | ![]() |
25Gbps | 850nm | Multimode Fiber (MMF) | 100m | -5 ~ +2.4 dBm | -10 dBm | 0~70℃ | Compatible 25G SFP28 SR Optical Transceiver | |
| ST-25G-SFP28-SR-I | 25G SFP28 SR Industrial Compatible | ![]() |
25Gbps | 850nm | Multimode Fiber (MMF) | 100m | -5 ~ +2.4 dBm | -10 dBm | -40~85℃ | Compatible 25G SFP28 SR Industrial Optical Transceiver | |
| ST-25G-SFP28-SR+ | 25G SFP28 SR+ Compatible | ![]() |
25Gbps | 850nm | Multimode Fiber (MMF) | 300m | -8.4~+2.4dBm | -11.9dBm | 0~70℃ | Compatible 25G SFP28 SR+ Optical Transceiver | |
| ST-10/25G-SFP28-CSR-S | 25G SFP28 CSR-S Dual Rate Compatible | ![]() |
10/25Gbps | 850nm | Multimode Fiber (MMF) | 100m | -8.4 ~ +2.4 dBm | -10.3 dBm | 0~70℃ | Compatible 10/25G SFP28 CSR-S Optical Transceiver | |
| ST-25G-SFP28-LR | 25G SFP28 LR Compatible | ![]() |
25Gbps | 1310nm | Single Mode Fiber (SMF) | 10km | -5 ~ +2 dBm | -12 dBm | 0~70℃ | Compatible 25G SFP28 LR Optical Transceiver | |
| ST-25G-SFP28-LR-I | 25G SFP28 LR Industrial Compatible | ![]() |
25Gbps | 1310nm | Single Mode Fiber (SMF) | 10km | -5 ~ +2 dBm | -12 dBm | -40~85℃ | Compatible 25G SFP28 LR Industrial Optical Transceiver | |
| ST-25G-SFP28-ER | 25G SFP28 ER Compatible | ![]() |
25Gbps | 1310nm | Single Mode Fiber (SMF) | 40km | 0 ~ +6 dBm | -19 dBm | 0~70℃ | Compatible 25G SFP28 ER Optical Transceiver | |
| ST-25G-SFP28-ER-I | 25G SFP28 ER Industrial Compatible | ![]() |
25Gbps | 1310nm | Single Mode Fiber (SMF) | 40km | 0 ~ +6 dBm | -19 dBm | -40~85℃ | Compatible 25G SFP28 ER Industrial Optical Transceiver | |
| ST-25G-SFP28-ZR | 25G SFP28 ZR Compatible | ![]() |
25Gbps | 1310nm | Single Mode Fiber (SMF) | 80km | +2 ~ +7 dBm | -28 dBm | 0~70℃ | Compatible 25G SFP28 ZR Optical Transceiver |





