HPE R8M60A 400GbE QSFP-DD MPO DR4 500M Transceiver

The HPE R8M60A is a 400GbE QSFP-DD transceiver built around the DR4 specification, delivering a 500-meter optical reach over MPO fiber connections. It's a fit for data center and campus network architects who need to link switches or aggregation points at 400 Gigabit speeds across building or floor distances beyond what shorter-reach optics can cover.

Overview

Available documentation on the R8M60A confirms a QSFP-DD form factor, MPO connector interface, and DR4 optical reach rated to 500 meters. This combination targets 400GbE links where fiber runs exceed short-range optic limits but don't require long-haul DWDM equipment — typical of inter-building or inter-datacenter-hall runs.

Key Features

• QSFP-DD form factor: uses the double-density QSFP cage standard, letting you provision 400GbE ports on switches built for high port-density spine and leaf layers without moving to a different module class.
• MPO connector: the multi-fiber push-on interface consolidates the multiple fiber strands a DR4 link needs into a single connector, simplifying patch panel wiring and cross-connects compared to individual LC pairs.
• DR4 optical spec, 500m reach: 500 meters covers most intra-campus and multi-building runs, giving you headroom over 100m-class short-reach optics without stepping up to a longer, costlier reach class.
• 400GbE line rate: matches the module to current-generation 400G switch uplinks and spine interconnects, the density point most new data center fabric builds are standardizing on.

Integration & Compatibility

The R8M60A is designed to install directly into QSFP-DD cages on compatible HPE switching hardware. Pair it with matching R8M60A units or DR4-compliant optics on the far end of the link, and route MPO fiber sized to the 500m reach budget. For broader fabric planning, review a network and PoE planning guide when scoping switch uplink counts alongside camera and endpoint density, and check the network switches category for compatible chassis. If you're building out a full rack, a network video recorder deployment on the same fabric benefits from matched 400G uplinks between aggregation switches to avoid bottlenecking recording throughput. Confirm interoperability with your specific switch model and firmware revision before ordering, since QSFP-DD port support and DR4 compatibility vary by platform generation.

Frequently Asked Questions

Q: What connector does the R8M60A use?

A: The R8M60A uses an MPO (multi-fiber push-on) connector interface.

Q: What is the maximum reach of the R8M60A?

A: The R8M60A is rated for 500 meters over its DR4 optical link.

Q: What form factor is the R8M60A?

A: It's a QSFP-DD (Quad Small Form-factor Pluggable Double Density) module.

Q: What line rate does the R8M60A support?

A: It supports 400GbE (400 Gigabit Ethernet).

Marty Allison

The R8M60A is a 400GbE QSFP-DD optic with a DR4 spec rated to 500 meters over MPO fiber — that reach number is the whole story on this part.

Technical Highlights:

• 500m DR4 reach: covers inter-building and inter-hall runs that exceed short-reach 100m optics without jumping to long-haul pricing.
• MPO connector: consolidates the DR4 fiber count into one connector, cutting patch panel clutter versus discrete LC runs.
• QSFP-DD form factor: drops into standard 400G switch cages without needing an adapter or a different port class.

Deployment Considerations:

• Confirm the far-end optic is also DR4-compliant — mismatched reach classes on a 400G link won't establish a stable connection.
• MPO fiber runs need to be sized and tested to the 500m budget; marginal fiber quality on long campus runs is the usual culprit when a DR4 link won't train up.

Reach for the R8M60A (part number R8M60A) when you're linking two buildings or two data hall rows at 400G and the run is comfortably under 500 meters — it's the right optic class for that distance without overspending on long-haul components.