Product Overview
The SFP-25G-SR (with the SFP-25G-SR-E variant) belongs to Huawei’s 25G series and implements 25.78125 Gbit/s 25GBASE-SR transmission over 850 nm multimode fiber with an LC/DLC duplex connector in the SFP28 footprint. Huawei documents 70 m on OM3 and 100 m on OM4 at a BER of 5×10^-5, and 30 m/40 m at the stricter BER of 10^-12.
The module is specified for a 0°C to +70°C operating case temperature and plugs into 25GE SFP28 ports on Huawei switches and server adapters. As the access-side counterpart of 100G SR4 (4×25G), it lets operators reuse their OM3/OM4 multimode plant while upgrading server connectivity from 10G to 25G per lane.
Typical applications include 25G server connectivity in cloud and enterprise data centers, ToR downlinks and uplinks over existing OM3/OM4 fiber, and the breakout legs of 100GBASE-SR4 links.
- 25GBASE-SR 25.78125 Gbit/s transmission over 850 nm MMF
- OM3 70 m / OM4 100 m at BER 5×10^-5 (30 m/40 m at BER 10^-12)
- LC/DLC duplex connector, hot-pluggable SFP28 footprint
- 0°C to +70°C commercial case temperature range
- Pairs with 100GBASE-SR4 for 4×25G breakout over the same MMF plant
| Rate | 25.78125 Gbit/s (25GBASE-SR) |
| Interface | SFP28, LC/DLC duplex |
| Wavelength | 850 nm |
| Reach | OM3 70 m / OM4 100 m (BER 5×10^-5); 30 m/40 m (BER 10^-12) |
| Fiber | MMF (OM3/OM4) |
| Operating Temperature | 0°C to +70°C (case) |
| Compatibility | Huawei SFP28 slots, 25GBASE-SR (IEEE 802.3by) |
Key Features of SFP-25G-SR 25GBASE-SR 850nm
SFP-25G-SR 25GBASE-SR 850nm belongs to the pluggable optical transceiver family used for high-speed data links. Modules of this class commonly cover form factors such as SFP, SFP+, SFP28, QSFP+, QSFP28 and QSFP-DD, with multimode and singlemode variants for different reach requirements.
Typical Applications of SFP-25G-SR 25GBASE-SR 850nm
Optical modules of this type are widely used for switch-to-switch links, storage networks, data center interconnects and telecom transmission equipment. Match the module to your switch vendor, wavelength and link distance before ordering.
Selecting SFP-25G-SR 25GBASE-SR 850nm with BS Comtec
BS Comtec supplies optical transceivers from Huawei, Cisco, Accelink and other brands with global delivery. Send us your switch model, port type and required distance, and we will recommend compatible modules and provide pricing.
Frequently Asked Questions
How do I choose the right SFP-25G-SR 25GBASE-SR 850nm for my network?
Check your equipment port type, data rate, fiber type (multimode or singlemode), wavelength and link distance. BS Comtec can cross-check these details and suggest compatible options from multiple brands.
Is SFP-25G-SR 25GBASE-SR 850nm compatible with my switch or router?
Most platforms work with standard-compliant modules, while some vendors apply compatibility lists or coded modules. Share your device model with BS Comtec and we will confirm suitability before shipment.
How is SFP-25G-SR 25GBASE-SR 850nm packed and delivered?
Modules are shipped in anti-static packaging suitable for international transport. BS Comtec arranges global delivery, and shipping options depend on destination and urgency — contact us for details.
What warranty applies to SFP-25G-SR 25GBASE-SR 850nm?
Warranty follows the manufacturer’s policy for the specific part number. BS Comtec supports replacement and RMA coordination according to the terms confirmed in your order.
Where is SFP-25G-SR 25GBASE-SR 850nm typically used?
It is typically used in data centers, enterprise networks, carrier transmission and campus backbones for high-speed fiber connections between switches, routers and storage systems.
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