Sate Optics provides compatible 2.5G SFP optical transceivers for telecom networks, enterprise access networks and industrial Ethernet applications.
Our 2.5G SFP solutions support reliable fiber connectivity for network upgrades, access deployments and applications requiring higher bandwidth than traditional 1G Ethernet.
Compatible 2.5G SFP transceivers are available with different optical interfaces, transmission distances and fiber options to meet various network deployment requirements.
Sate Optics delivers flexible 2.5G optical connectivity solutions for service providers, system integrators and customers upgrading existing network infrastructure.
2.5G SFP Optical Transceivers
| Part Number | Model No. | Picture | Data Rate(Mbps) | Wavelength | Media Type | Reach | TX Power(dBm) | RX Sens.(dBm) | Temp.(℃) | Note | Datasheet |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ST-2.5G-SFP-SX | 2.5G SFP SX 550m Compatible | ![]() |
2.5Gbps | 850nm | Multi-mode Fiber (MMF) | 550m | -10 ~ -3 dBm | -18 dBm | 0~70℃ | Compatible 2.5G SFP SX Optical Transceiver | |
| ST-2.5G-SFP-LX2 | 2.5G SFP LX2 2km Compatible | ![]() |
2.5Gbps | 1310nm | Single-mode Fiber (SMF) | 2km | -9 ~ -3 dBm | -18 dBm | 0~70℃ | Compatible 2.5G SFP LX Optical Transceiver | |
| ST-2.5G-SFP-LX | 2.5G SFP LX 20km Compatible | ![]() |
2.5Gbps | 1310nm | Single-mode Fiber (SMF) | 20km | -5 ~ 0 dBm | -19 dBm | 0~70℃ | Compatible 2.5G SFP LX Optical Transceiver | |
| ST-2.5G-SFP-LX+ | 2.5G SFP 1550nm 20km Compatible | ![]() |
2.5Gbps | 1550nm | Single-mode Fiber (SMF) | 20km | -5 ~ 0 dBm | -19 dBm | 0~70℃ | Compatible 2.5G SFP LX+ Optical Transceiver | |
| ST-2.5G-SFP-LX40 | 2.5G SFP 1310nm 40km Compatible | ![]() |
2.5Gbps | 1550nm | Single-mode Fiber (SMF) | 40km | -2 ~ +3 dBm | -19 dBm | 0~70℃ | Compatible 2.5G SFP LX40 Optical Transceiver | |
| ST-2.5G-SFP-EX | 2.5G SFP EX 40km Compatible | ![]() |
2.5Gbps | 1550nm | Single-mode Fiber (SMF) | 40km | -2 ~ +3 dBm | -19 dBm | 0~70℃ | Compatible 2.5G SFP EX Optical Transceiver | |
| ST-2.5G-SFP-ZX | 2.5G SFP ZX 80km Compatible | ![]() |
2.5Gbps | 1550nm | Single-mode Fiber (SMF) | 80km | 0 ~ +5 dBm | -26 dBm | 0~70℃ | Compatible 2.5G SFP ZX Optical Transceiver | |
| ST-2.5G-SFP-ZX100 | 2.5G SFP ZX100 100km Compatible | ![]() |
2.5Gbps | 1550nm | Single-mode Fiber (SMF) | 100km | 0 ~ +5 dBm | -30 dBm | 0~70℃ | Compatible 2.5G SFP ZX100 Optical Transceiver | |
| ST-2.5G-SFP-ZX120 | 2.5G SFP ZX120 120km Compatible | ![]() |
2.5Gbps | 1550nm | Single-mode Fiber (SMF) | 120km | 0 ~ +5 dBm | -31 dBm | 0~70℃ | Compatible 2.5G SFP ZX120 Optical Transceiver |
2.5G SFP BIDI Optical Transceivers
| Part Number | Model No. | Picture | Data Rate(Mbps) | Wavelength | Media Type | Reach | TX Power(dBm) | RX Sens.(dBm) | Temp.(℃) | Note | Datasheet |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ST-2.5G-SFP-BD33-2 | 2.5G SFP BIDI BD33-2 2km Compatible | ![]() |
2.5Gbps | 1310nm Tx / 1310nm Rx | Single-mode Fiber (SMF) | 2km | -10 ~ -3 dBm | -18 dBm | 0~70℃ | Compatible 2.5G SFP BIDI 2km Optical Transceiver | |
| ST-2.5G-SFP-BD35(53)-20 | 2.5G SFP BIDI BD35(53) 20km Compatible | ![]() |
2.5Gbps | 1310nm Tx / 1550nm Rx ↔ 1550nm Tx / 1310nm Rx | Single-mode Fiber (SMF) | 20km | -5 ~ 0 dBm | -19 dBm | 0~70℃ | Compatible 2.5G SFP BIDI BD35(53) Optical Transceiver | |
| ST-2.5G-SFP-BD34(43)-20 | 2.5G SFP BIDI BD34(43) 20km Compatible | ![]() |
2.5Gbps | 1310nm Tx / 1490nm Rx ↔ 1490nm Tx / 1310nm Rx | Single-mode Fiber (SMF) | 20km | -5 ~ 0 dBm | -19 dBm | 0~70℃ | Compatible 2.5G SFP BIDI BD34(43) Optical Transceiver | |
| ST-2.5G-SFP-BD35(53)-40 | 2.5G SFP BIDI BD35(53) 40km Compatible | ![]() |
2.5Gbps | 1310nm Tx / 1550nm Rx ↔ 1550nm Tx / 1310nm Rx | Single-mode Fiber (SMF) | 40km | -2 ~ +3 dBm | -19 dBm | 0~70℃ | Compatible 2.5G SFP BIDI BD35(53) Optical Transceiver | |
| ST-2.5G-SFP-BD34(43)-40 | 2.5G SFP BIDI BD34(43) 40km Compatible | ![]() |
2.5Gbps | 1310nm Tx / 1490nm Rx ↔ 1490nm Tx / 1310nm Rx | Single-mode Fiber (SMF) | 40km | -2 ~ +3 dBm | -23 dBm | 0~70℃ | Compatible 2.5G SFP BIDI BD34(43) Optical Transceiver | |
| ST-2.5G-SFP-BD35(53)-60 | 2.5G SFP BIDI BD35(53) 60km Compatible | ![]() |
2.5Gbps | 1310nm Tx / 1550nm Rx ↔ 1550nm Tx / 1310nm Rx | Single-mode Fiber (SMF) | 60km | -2 ~ +3 dBm | -24 dBm | 0~70℃ | Compatible 2.5G SFP BIDI BD35(53) Optical Transceiver | |
| ST-2.5G-SFP-BD34(43)-60 | 2.5G SFP BIDI BD34(43) 60km Compatible | ![]() |
2.5Gbps | 1310nm Tx / 1490nm Rx ↔ 1490nm Tx / 1310nm Rx | Single-mode Fiber (SMF) | 60km | -2 ~ +3 dBm | -24 dBm | 0~70℃ | Compatible 2.5G SFP BIDI BD34(43) Optical Transceiver | |
| ST-2.5G-SFP-BD45(54)-80 | 2.5G SFP BIDI BD45(54) 80km Compatible | ![]() |
2.5Gbps | 1490nm Tx / 1550nm Rx ↔ 1550nm Tx / 1490nm Rx | Single-mode Fiber (SMF) | 80km | -3 ~ +3 dBm | -24 dBm | 0~70℃ | Compatible 2.5G SFP BIDI BD45(54) Optical Transceiver |
2.5G-T Copper SFP Transceivers
| Part Number | Model No. | Picture | Data Rate(Mbps) | Wavelength | Media Type | Reach | TX Power(dBm) | RX Sens.(dBm) | Temp.(℃) | Note | Datasheet |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ST-2.5G-SFP-T | 10/100/1000/2500M Copper SFP Transceiver (RJ45) | ![]() |
10/100/1000/2500Mbps | N/A | Copper RJ45 | 100m | N/A | N/A | 0~70℃ | Compatible 2.5G-T Copper SFP Transceiver |
2.5G SFP CWDM/DWDM Optical Transceivers
| Part Number | Model No. | Picture | Data Rate(Mbps) | Wavelength | Media Type | Reach | TX Power(dBm) | RX Sens.(dBm) | Temp.(℃) | Note | Datasheet |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ST-2.5G-CWDM-XXXX-40 | 2.5G CWDM SFP 40km Compatible | ![]() |
2.5Gbps | 1270nm~1610nm | Single-mode Fiber (SMF) | 40km | -2 ~ +3 dBm | -19 dBm | 0~70℃ | Compatible 2.5G CWDM SFP Optical Transceiver | |
| ST-2.5G-CWDM-XXXX-80 | 2.5G CWDM SFP 80km Compatible | ![]() |
2.5Gbps | 1270nm~1610nm | Single-mode Fiber (SMF) | 80km | 0~+5dBm | -26dBm | 0~70℃ | Compatible 2.5G CWDM SFP Optical Transceiver | |
| ST-2.5G-CWDM-XXXX-120 | 2.5G CWDM SFP 120km Compatible | ![]() |
2.5Gbps | 1270nm~1610nm | Single-mode Fiber (SMF) | 120km | 0 ~ +5 dBm | -31 dBm | 0~70℃ | Compatible 2.5G CWDM SFP Optical Transceiver | |
| ST-2.5G-DWDM-XXXX-80 | 2.5G DWDM SFP 80km Compatible | ![]() |
2.5Gbps | CH17~CH61 | Single-mode Fiber (SMF) | 80km | 0 ~ +4 dBm | -28 dBm | 0~70℃ | Compatible 2.5G DWDM SFP Optical Transceiver | |
| ST-2.5G-DWDM-XXXX-120 | 2.5G DWDM SFP 120km Compatible | ![]() |
2.5Gbps | CH17~CH61 | Single-mode Fiber (SMF) | 120km | 0 ~ +5 dBm | -28 dBm | 0~70℃ | Compatible 2.5G DWDM SFP Optical Transceiver |

























