As data center and enterprise networks scale beyond 40G, organizations need a cost-effective upgrade path that avoids recabling or full infrastructure overhauls.
The QSFP28 40/100G SR1.2 Bidi transceiver enables a practical, phased migration from 40G to 100G over duplex MMF. It connects a 40G proprietary interface on one end to a 100G SR1.2 standard interface on the other, allowing you to upgrade one side of an existing 40G SR4 link without replacing the entire infrastructure.
As the first third-party alternative supporting the SR1.2 standard, it offers a more flexible option beyond OEM-only solutions. With broad multi-vendor compatibility and faster availability, it helps reduce lead times while supporting evolving network demands.
QSFP28 40/100G SR1.2 Bidi
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| MSA and TAA 40/100GBase-SR1.2 Bidi QSFP28 Transceiver (MMF, 844nm to 918nm, 100m, LC, DOM) Rate Select | SKU: QSFP28-40/100GB-SRBD-AO |
| Arista Networks Compatible TAA 40/100GBase-SR1.2 Bidi QSFP28 Transceiver (MMF, 844nm to 918nm, 100m, LC, DOM) Rate Select | SKU: QSFP28-40/100GB-SRBD-AR-AO |
| Cisco Compatible TAA 40/100GBase-SR1.2 Bidi QSFP28 Transceiver (MMF, 844nm to 918nm, 100m, LC, DOM) Rate Select | SKU: QSFP28-40/100GB-SRBD-C-AO |
| Juniper Networks Compatible TAA 40/100GBase-SR1.2 Bidi QSFP28 Transceiver (MMF, 844nm to 918nm, 100m, LC, DOM) Rate Select | SKU: QSFP28-40/100GB-SRBD-J-AO |
Features & Benefits:
- Seamless migration from 40G to 100G over duplex MMF.
- Preserves existing 40G infrastructure while enabling a phased upgrade path.
- Connects a 40G proprietary interface on one end to a 100G SR1.2 standard interface on the other.
- Available in-stock with fast shipping from U.S. and U.K. locations.
- Backed by lifetime warranty and global technical support.

