Axiom Memory Q12DR4-AR-AX 400G DR4 QSFP112 Transceiver

Move 400G traffic across Ethernet and InfiniBand NDR fabric connections with a QSFP112 DR4 optical interface rated for 500 m. The Axiom Memory Q12DR4-AR-AX targets Arista-compatible equipment that requires a 400G DR4 module rather than a lower-speed interface or alternate optical format. Its right-hand-side flat-top configuration addresses port-side mechanical orientation where that detail matters during installation. Use this optic for high-bandwidth links between data center switching layers, compute clusters, storage fabrics, or other 400G infrastructure endpoints. The QSFP112 host form factor aligns it with equipment built for the 400G QSFP112 interface generation, while DR4 identifies the four-lane optical signaling format used for these links. Ethernet and InfiniBand NDR support makes it applicable to both packet-network and high-performance computing fabric environments. This specific configuration combines 400G DR4 operation, a 500 m reach rating, Arista compatibility, and the stated right-hand-side flat-top mechanical arrangement. Those details should match the target port, fabric protocol, optical reach requirement, and physical installation orientation before deployment. It is intended for installations that need a defined 400G optical connection rather than a copper-attached interconnect or a different transceiver form factor.