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Small rectangular transceiver module with matte metal casing and single MPO port opening

HPE

HPE JH231A X142 40G QSFP+ MPO SR4 SFP transceiver

SKU CH-W8PP-QRXQY MPN JH231A

40 Gbps QSFP+ transceiver for multi-mode fibre at 850 nm with MPO connector

  • Device TypeTransceiver
  • Wavelength850nm
  • Fiber CableMulti-mode Optical Fiber
  • Ports40GBase-SR4
  • Transfer Rate40 Gbps
  • 40 Gbps throughput for high-bandwidth optical links
  • 850 nm wavelength optimised for multi-mode fibre runs
  • QSFP+ form factor fits standard 40GBase-SR4 ports
  • MPO connector enables four-lane parallel transmission
  • Purpose-built for optical and data networking applications

Network transceiver for 40 Gbps optical links

The HPE JH231A X142 is a QSFP+ transceiver built for 40 Gigabit Ethernet over multi-mode fibre. It suits data-centre operators and network engineers who need short-range, high-density connectivity between switches or servers.

MPO 40GBase-SR4 interface at 850 nm

The decisive specification is the single MPO port running 40GBase-SR4 at an 850 nm wavelength. This transceiver only works with multi-mode optical fibre and matching QSFP+ cages; it will not link over single-mode cable or copper direct-attach assemblies.

Hot-plug QSFP+ module with MPO alignment

Installation is a straight insertion into any compliant QSFP+ slot — no tools or software configuration required. The common issue is mismatched polarity or fibre type; verify that the patch cable uses the correct MPO polarity map and multi-mode cores before seating the module.

Highlights

  • 40 Gbps throughput for high-bandwidth optical links
  • 850 nm wavelength optimised for multi-mode fibre runs
  • QSFP+ form factor fits standard 40GBase-SR4 ports
  • MPO connector enables four-lane parallel transmission
  • Purpose-built for optical and data networking applications

Specifications

BrandHPE
ModelJH231A
Device TypeTransceiver
Wavelength850nm
Fiber CableMulti-mode Optical Fiber
Ports40GBase-SR4
Transfer Rate40 Gbps
Shipping weight0.45 kg
Package size171 × 95 × 25 mm

Questions about this item

How does the 40 Gbps transfer rate perform when the transceiver is installed in a switch?

The transceiver supports 40 Gigabit Ethernet at 850 nm over multi-mode fiber using an MPO connector.

What does the 40GBase-SR4 port designation mean for cable compatibility?

It indicates a 40 Gbps short-reach interface that requires multi-mode fiber with an MPO connector.

What physical connector and fiber type are needed to plug this module into a panel?

The module uses a single MPO connector and is designed for multi-mode optical fiber.

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