AI & Data Center Networking
400G QSFP56-DD
TNL-0400-56DD
The Thenewlink 400G QSFP56-DD is a hot-pluggable DR4 optical transceiver that delivers 400 Gbps over single-mode fiber using four 100G PAM4 lanes. With a 1310 nm EML transmitter and an MPO-12 interface, it supports links up to 500 m and drops into the widely deployed QSFP-DD ecosystem. It is compliant with the QSFP-DD MSA, IEEE 802.3bs and the 100G Lambda MSA.
Data rate400 Gbps
Reach500 m
Lanes4 × 100G
Form factorQSFP-DD
Key Features
- Hot-pluggable QSFP-DD (Type 2) form factor
- 4 × 100G PAM4 lanes, retimed 400GAUI-8 electrical interface
- 400 Gb/s aggregate, 400G Ethernet / IEEE 802.3bs compliant
- DR4 reach — up to 500 m over single-mode fiber
- MPO-12 optical interface
- EML-based 1310 nm transmitter, PIN receiver
- Single +3.3 V supply, ≤ 12 W
- 0–70 °C operating case temperature
- I²C management, digital diagnostics (DDM / DOM)
- Compliant with 100G Lambda MSA · RoHS compliant
Application
- High-density data center fabrics
- AI training & inference clusters
- Cloud & hyperscale data centers
- Datacom interconnect
Specifications
Data Rate
400 Gb/s
Distance
500 m
Case Temperature
0–70 °C
Voltage Supply
3.3 V
Transmitter
EML
Receiver
PIN
Wavelength
1310 nm
Connector
MPO-12
Power (max)
12 W
Form Factor
QSFP-DD
Modulation
PAM4
Compliance
400G Ethernet · IEEE 802.3bs · QSFP-DD MSA
Related products
