Designed for InfiniBand HDR fabrics, HPC clusters and AI computing networks, the 400G QSFP112 XDR4 Optical Transceiver provides 425Gbps (4x106.25Gb/s) throughput in a QSFP112 form factor. It operates at 1310nm over SMF through a MPO-12/APC connector and supports link lengths up to 2km. The module meets QSFP-112 MSA, CMIS Rev 5.2, IEEE 802.3bs, OIF-CEI-112G-VSR-PAM4 and includes digital diagnostic monitoring for live status readout.

Product Highlights

• QSFP112 form factor, 425Gbps (4x106.25Gb/s) data rate
• Wavelength: 1310nm
• Connector: MPO-12/APC
• Reach: up to 2km
• Fiber media: SMF
• DDM/DOM: Supported

Network architects choose the 400G QSFP112 XDR4 Optical Transceiver for InfiniBand HDR fabrics, HPC clusters and AI computing networks: it runs 425Gbps (4x106.25Gb/s) over SMF and reaches 2km. With its MPO-12/APC optical interface, the module works directly with the SMF infrastructure already installed in most facilities. If your project needs a specific vendor coding or custom label, our production line handles it as a routine step before packing. The link runs 4x100G-PAM4 modulation, which keeps it aligned with current 400G switch silicon.

Compliance: QSFP-112 MSA, CMIS Rev 5.2, IEEE 802.3bs, OIF-CEI-112G-VSR-PAM4. Every unit's EEPROM coding and link behavior are verified on real host equipment in our lab, so what arrives at your site is ready to use.

Our part number for this module is QSFP112-XDR4-400G. When ordering, just let us know the quantity and whether you need the compatibility coding for a particular switch brand; labeling and packaging can also follow your channel requirements.

Most orders travel by international express and arrive within days; palletized freight by air or sea is used for volume orders. If you prefer, we ship on your DHL, UPS or FedEx account, or deliver to your appointed agent in China for onward consolidation.

We do not ship untested stock. Each transceiver and cable is powered up in our test racks, checked for link stability, transmit power, receiver sensitivity and diagnostic readouts, and only then packed for delivery. This factory-level testing is one reason network integrators keep reordering from us year after year.

Standard packing is an anti-static bag plus blister protection, with cartons sized to keep products from moving in transit. We apply our standard labels by default; neutral packing or customer-branded labels, part number stickers and serial barcodes are all available on request.

Because we are the factory, customization is straightforward: non-standard lengths, different jacket materials, specific polarity or breakout wiring, and compatibility programming for particular switch brands are all routine work for us. Small trial orders are accepted so you can verify quality before scaling up.