ST-10/25G-SFP28-LR
3-year warranty · Standard lead time 3–7 days
10/25G SFP28 LR Dual-Rate Optical Transceiver — 10km Single-Mode for 10G and 25G
The Sate Optics ST-10/25G-SFP28-LR is a dual-rate SFP28 optical transceiver that runs at both 10G and 25G. It operates at 1310nm over duplex LC single-mode fiber for up to 10km, so one stocked optic serves 10G LR ports today and 25G ports after the switch refresh — no second inventory, no mid-migration swap.
Why This Module
- Dual-rate 10/25G: auto-matched to the port speed, one module for both generations
- 10km over duplex SMF: 1310nm optics on a duplex LC pair
- DDM monitoring: real-time optical power, temperature and voltage readings, 0~70℃ commercial range
Compatible with your platform — coded for major networking platforms, including Cisco, Juniper, Arista, Huawei, Nokia, H3C and ZTE; 100% tested before shipment.
Key Specifications
| Parameter | Specification |
| Form Factor | SFP28 |
| Data Rate | 10/25Gbps |
| Wavelength | 1310nm |
| Fiber Type | Single Mode Fiber (SMF) |
| Transmission Distance | Up to 10km |
| TX Power | -7 ~ +2.5 dBm |
| RX Sensitivity | -12 dBm |
| Power Budget | 5 dB |
| Receiver Overload | 2.5 dBm |
| Extinction Ratio | >3 dB |
| Max. Power Consumption | ≤1.5W |
| Operating Temperature | 0~70℃ |
Used In
- 25G top-of-rack and aggregation switches in data centers and enterprise networks
- Server NICs and converged adapters running 10GbE or 25GbE
- Mixed 10G/25G fabrics during staged switch refreshes
- Typical platforms: Cisco Nexus 9300 / 9200 series, Arista 7060X / 7280R series, Juniper QFX5120 / EX4650, NVIDIA Spectrum SN2000 / SN3000 series and ConnectX NICs, Huawei CloudEngine 6866, Nokia 7250 IXR, H3C S6520X / S12500 and ZTE ZXR10 5960 series.
Not sure it fits your equipment? Request a Quote and tell us your switch model — we confirm compatibility before you order.
Where It Fits
- Data center interconnect (DCI) between sites up to 10km apart, at 10G today or 25G tomorrow
- Staged 25G migrations where access switches refresh in phases
- Enterprise campus backbones standardised on LR optics
Every module is covered by a 3-year warranty with lifetime maintenance. Standard lead time is 3–7 days for most products, and samples are available for evaluation.
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-10/25G-SFP28-LR | 25G SFP28 LR Dual Rate Compatible | ![]() |
10/25Gbps | 1310nm | Single Mode Fiber (SMF) | 10km | -7 ~ +2.5 dBm | -12 dBm | 0~70℃ | Compatible 10/25G 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 |








