Cisco QSFP-40/100-SRBD Compatible Dual-Rate 40G/100G SR-BiDi QSFP28
Cisco compatible QSFP-40/100-SRBD - Key Features
- Compatibility: Cisco
- Media Type: Multi-Mode Fiber (MMF) -OM3/OM4/OM5
- Connector: Duplex LC/UPC
- Fiber Count: BiDi
- Maximum Distance: 150 m
- Average Link Budget: 1.9 dB
- Tx Wavelength: 850 nm
- Supported Data Rate: 106.25 Gbps
- DDM/DOM: Supported
- Forward Error Correction (FEC): Host FEC Supported
- Temperature Range: Standard 0°-70°C
Cisco QSFP-40/100-SRBD Price
Cisco compatible QSFP-40/100-SRBD Specifications
Form Factor | QSFP28 |
Modulation | PAM4 (Pulse Amplitude Modulation 4-level) |
Media Type | Multi-Mode Fiber (MMF) -OM3/OM4/OM5 |
Connector | Duplex LC/UPC |
Fiber Count | BiDi |
Maximum Distance | 150 m |
Average Link Budget | 1.9 dB |
TX Wavelength | 850 nm |
RX Wavelength | 900 nm |
Supported Data Rate | 106.25 Gbps |
Supported Ethernet Applications | 100G Ethernet (103.125 Gbps), 40G Ethernet (41.25Gbps) |
DDM/DOM | Supported |
Forward Error Correction (FEC) | Host FEC Supported |
Transmitter Type | VCSEL Laser |
Tx Wave Bandwidth | 36nm (Ch1:832-868nm and Ch2: 882-918nm) |
Receiver Type | PIN photodiode |
RX Wave Bandwidth | 36nm (Ch1:832-868nm and Ch2: 882-918nm) |
Receiver Overload | 4 dBm |
Temperature Range | Standard 0°-70°C |
Storage Temperature | -40° to 85°C |
Relative Humidity | 5 to 85% |
Power Consumption (Max) | 3.5 W |
Power | +3.3V single power supply |
Compliance | CE, RoHS, Class 1 FDA and IEC60825-1 Laser Safety Compliant, IEEE 802.3bm, 100GBASE SR-BiDi, QSFP28 MSA, SFF-8636 (Management Interface for 4-lane modules), SFF-8419 (CFP Power Management Interface) |
Cisco compatible QSFP-40/100-SRBD Datasheet
v4Complete technical specifications and product details
Cisco compatible QSFP-40/100-SRBD Description
EdgeOptic's QSFP-40/100-SRBD compatible is a Cisco-coded dual-rate 40G/100G SR-BiDi version of the EdgeOptic multi-vendor 100G BiDi transceiver, built to match the original Cisco part and coded with Cisco-recognized EEPROM so it registers without the service unsupported-transceiver command. The same module ships with multiple vendor codes across our catalog; this listing is the Cisco-coded build.
The defining feature of this SKU is dual-rate operation. It auto-negotiates between 40G Ethernet (41.25 Gbps) and 100G Ethernet (103.125 Gbps), so one module covers both rates over the same multimode plant. In 100G mode it runs as 2x50G PAM4. Don't confuse it with the QSFP-100G-SRBD, which is the 100G-only SR-BiDi SKU; verify the part number against the Cisco transceiver table if either could fit your port.
Reach depends on the rate and the fiber grade. At 100G the module reaches 70 m over OM3, 100 m over OM4, and 150 m over OM5. At 40G it reaches 100 m over OM3 and 150 m over OM4. The transmitter is a dual-wavelength VCSEL at 850 nm (Ch1) and 900 nm (Ch2); the receiver is a wideband PIN photodiode covering 832 to 918 nm. The average optical link budget is 1.9 dB.
Because the receiver is wideband, the same module sits at both ends of the link. The duplex LC connection crosses transmit to receive between the two fibers, so there is no complementary far-end part to order. This SR-BiDi design halves fiber count versus parallel SR4 by carrying both directions over a standard duplex LC patch.
Form factor is QSFP28 to the SFF-8636 MSA. The host electrical interface is CAUI-4 per IEEE 802.3bm, and the link uses host-side FEC. The module supports DOM/DDM for live monitoring of temperature, voltage, bias, and optical power, and operates across the standard 0 to 70 degrees C range. Power draw is up to 3.5 W. The Cisco spare-ordering PID for this part is QSFP-40/100-SRBD=, which references the same module.
The module works on Cisco Nexus 9000 series switches. Confirm support for your specific platform and software release against the Cisco compatibility matrix before deployment, particularly when mixing 40G and 100G BiDi rates across a link.
Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Made to order, 2-week lead time, lifetime warranty included. For deployment or compatibility questions, contact our sales team.
Frequently Asked Questions
What is the difference between the QSFP-40/100-SRBD and the QSFP-100G-SRBD?
The QSFP-40/100-SRBD is the dual-rate SKU: it auto-negotiates between 40G and 100G over the same duplex LC multimode fiber. The QSFP-100G-SRBD is 100G-only. If a port may run either rate, the 40/100 part covers both; if it is fixed at 100G, either works. EdgeOptic carries both, so check the part number on your order to avoid pulling the wrong reach and rate class.
What reach does the QSFP-40/100-SRBD support at 40G versus 100G?
Reach changes with the rate. At 100G the module reaches 70 m over OM3, 100 m over OM4, and 150 m over OM5. At 40G it reaches 100 m over OM3 and 150 m over OM4. Match the fiber grade to the rate you plan to run, since a span that works at 40G may exceed the 100G budget on the same OM3 cabling.
Does the QSFP-40/100-SRBD need the service unsupported-transceiver command on Cisco Nexus 9000?
No. EdgeOptic codes the Cisco-compatible QSFP-40/100-SRBD with Cisco-recognized EEPROM, so Nexus 9000 accepts it without the service unsupported-transceiver command. When pairing the module at 40G against a 100G BiDi peer, verify the speed negotiation settings against the Cisco compatibility matrix for your platform and software release.