400G QSFP112 DR4 1310nm 500m MPO-12 SMF Optical Transceiver Module
OT-400G-QSFP-DR4
$887.00
-
Maximum power consumption below 10W.
-
Hot-pluggable QSFP112 form factor and built-in 7nm DSP chips.
-
Silicon photonics chips and 3D packaging technology.
-
Transmit over single-mode fibers up to 500m.
-
MPO-12 receptacles and built-in digital diagnostics.
-
QSFP112 MSA and RoHS compliant.
-
4×106.25Gbps(53.125GBd PAM4)electrical interface.
-
4×106.25Gbps(53.125GBd PAM4)optics architecture.
-
Operating temperature range (0℃ to +70℃).
-
RoHS-compliant for greener network connections.
MSA Compatible 400G QSFP112 DR4 Optical Transceiver Module (SMF 1310nm, 500m, MPO-12)
Specification
|
Connectivity solution

Related Products
|
Questions & Answers
A small, high-density optical module made specifically for 400G Ethernet applications is the 400G QSFP112 DR4. It employs 4x100G PAM4 modulation over a 500-meter-range single-mode fiber (SMF). It enables cloud networks, high-performance computing, and data center interconnects (DCI) by utilizing the QSFP112 form factor, designed for 112 Gbps per lane.
No, QSFP112 is not backward compatible with QSFP28 (25G/100G) or QSFP56 (50G/200G) ports; instead, it employs a new pinout to allow 112 Gbps lanes. Switches or routers that are compatible with QSFP112 are required.
The fiber has a wavelength of 1310 nm and is single-mode fiber (SMF).
Connection: MPO-12/APC connection, with 4x100G transmission using 8 fibers (4 Tx/Rx pairs).
DR4 can divide 400G into 4x100G connections (e.g., connecting to 100G QSFP28 ports) via an MPO-to-4xLC breakout cable. Make that breakout mode is supported by the switch firmware.
DR4: 4x100G PAM4, MPO-12, 500m over SMF.
FR4: 4x100G LAN-WDM, LC connections, 2km over SMF.
SR4: 4x100G NRZ, MPO-12, 100m over multi-mode fiber (MMF).
Use Case: FR4 works for longer distances, SR4 is for short MMF trips, and DR4 strikes a compromise between cost and reach for intra-datacenter links.
– QSFP112: single-row connection, lower footprint, 4x112G lanes (400G total).
– QSFP-DD: double-density connection with 8x50G lanes (400G total) for increased scalability.
Trade-off: QSFP-DD provides backward compatibility with QSFP28/56, while QSFP112 streamlines the deployment of 112G lanes.