QLogic SFP25-SR-SP Compatible 25GBASE-SR SFP28 Transceiver
Qlogic compatible SFP25-SR-SP - Key Features
- Compatibility: Qlogic
- Media Type: Multi-Mode Fiber (MMF) -OM3/OM4/OM5
- Fiber Count: Duplex
- Connector: Double LC/UPC
- Maximum Distance: 100 m
- Guaranteed Link Budget: 5.3 dB
- Tx Wavelength: 850 nm
- Supported Data Rate: 8.5 Gbps - 25.78 Gbps
- DDM/DOM: Supported
- Forward Error Correction (FEC): Host FEC Supported
- Temperature Range: Standard 0°-70°C
Qlogic SFP25-SR-SP Price
In Stock - Ships Next Business DayQlogic compatible SFP25-SR-SP Specifications
Form Factor | SFP28 |
Media Type | Multi-Mode Fiber (MMF) -OM3/OM4/OM5 |
Fiber Count | Duplex |
Connector | Double LC/UPC |
Maximum Distance | 100 m |
Guaranteed Link Budget | 5.3 dB |
TX Wavelength | 850 nm |
RX Wavelength | 850 nm |
Supported Data Rate | 8.5 Gbps - 25.78 Gbps |
Supported Ethernet Applications | 10G Ethernet (10.31Gbps), 25G Ethernet (25.78Gbps) |
DDM/DOM | Supported |
Forward Error Correction (FEC) | Host FEC Supported |
Transmitter Type | VSCEL Laser |
Average Launch Power (Min) Each Lane | -5 dBm |
Average Launch Power (Max) Each Lane | 2.4 dBm |
Extinction Ratio (Min) | 3 dB |
Receiver Type | PIN photodiode |
Rx Wavelength Bandwidth | 20 nm |
Average Receiver Sensitivity (Min) Each Lane | -10.3 dBm |
Average Receiver Sensitivity (Max) Each Lane | 2.4 dBm |
Receiver Overload | 2.4 dBm |
Temperature Range | Standard 0°-70°C |
Storage Temperature | -40° to 85°C |
Relative Humidity | 5 to 85% |
Power Consumption (Max) | 0.3 W |
Power | +3.3V single power supply |
Compliance | SFF-8432, CE, Class 1 FDA and IEC60825-1 Laser Safety Compliant, RoHS, SFF-8431, SFF-8472, SFP28 MSA |
Qlogic compatible SFP25-SR-SP Datasheet
v3Complete technical specifications and product details
Qlogic compatible SFP25-SR-SP Description
EdgeOptic's SFP25-SR-SP compatible is a QLogic-coded 25GBASE-SR SFP28 transceiver built for QLogic (now Marvell) FastLinQ 41000-series 25 Gigabit adapters and HBAs. The module matches the QLogic original SKU for short-reach 25G Ethernet over multimode fiber and carries EEPROM programmed to identify as QLogic across FastLinQ firmware inventory checks.
Optical specs: 850 nm VCSEL transmitter, PIN photodiode receiver, TX power -8.4 to +2.4 dBm, RX sensitivity better than -10.3 dBm, 5.3 dB optical budget. Reach is 100 m on OM4, 100 m on OM5, and 70 m on OM3 with an LC/UPC duplex connector. The module is IEEE 802.3by Clause 112 compliant and supports RS-FEC via Clause 91 (RS(528,514)) when the host port negotiates it.
The electrical interface follows SFF-8431 and SFF-8432 for the SFP28 cage, with an electrical signaling range of 8.5 to 28.1 Gbps per the SFP28 host interface. The module itself is optically qualified for 25GBASE-SR only per IEEE 802.3by Clause 112; operation at 10G rates is a host SerDes function when the FastLinQ port negotiates down and is not an optical performance guarantee by this module. DOM telemetry is SFF-8472 compliant for temperature, supply voltage, TX bias, TX power, and RX power visibility via FastLinQ driver tools, QCC, and standard SNMP. Power dissipation is 0.3 W, matching the SFP28 MSA low-power envelope, and the module operates across 0-70 C.
Platform coverage includes QLogic FastLinQ 41000-series NICs and converged network adapters, Marvell-rebranded FastLinQ 25G adapters, and mixed-fleet deployments where QLogic-coded optics are required in Brocade, Chelsio, and Dell EMC hardware. Cavium acquired QLogic's networking assets in 2016, and Marvell acquired Cavium in 2018, which is how FastLinQ ended up under Marvell. FastLinQ firmware still expects QLogic EEPROM identification. EdgeOptic's SFP25-SR-SP carries that identification, so the module is accepted at link-up without driver-level workarounds or forced third-party flags.
For FastLinQ deployments on mixed-vendor hardware requiring alternate EEPROM coding, contact our sales team.
Frequently Asked Questions
Is the QLogic SFP25-SR-SP the same form factor as a standard 25GBASE-SR SFP28 module?
Yes. The SFP25-SR-SP is a 25GBASE-SR SFP28 module per SFF-8402 MSA, operating at 850 nm with 100 m reach on OM4 multimode fiber. It is not an SFP+ module, and it is not limited to 10G. QLogic used the SFP25-SR-SP SKU for 25G Ethernet ports on FastLinQ adapters and HBAs.
Which QLogic and Marvell adapters support the SFP25-SR-SP transceiver?
The primary deployment is the QLogic FastLinQ 41000-series 25G Ethernet adapter family, including the QL41112H and QL41162H add-in cards. Marvell's rebadged FastLinQ 25G adapters use the same firmware family and accept SFP25-SR-SP coded optics unchanged.
Does the SFP25-SR-SP run at 10G as well as 25G?
The module's electrical interface spans 8.5 to 28.1 Gbps, so the host SerDes can clock it at 10G on dual-rate FastLinQ ports for backward compatibility. Optically the module is qualified for 25GBASE-SR only; 10G-rate operation is host-governed and is not a validated optical equivalent to a dedicated 10GBASE-SR module. For pure 10G deployments, use a dedicated 10GBASE-SR SFP+.
Will the EdgeOptic SFP25-SR-SP work in non-QLogic ports such as Brocade or Dell EMC?
The default EEPROM identifies as QLogic, which is the expected coding for FastLinQ platforms and for mixed-fleet environments where QLogic optics must be sourced as a QLogic-coded spare. For Brocade, Chelsio, or Dell EMC native ports requiring a different vendor identity, contact EdgeOptic for platform-specific EEPROM coding.