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Green circuit board with black memory chips and gold edge connector

HP

HP 4M9Y0AA 16GB DDR5 4800 CL40 desktop RAM

SKU CH-2ZY5-DC3AY MPN 4M9Y0AA

Single 16 GB DDR5 module runs at 4800 MHz with CL40 latency and 1.10 V

  • Capacity16GB
  • SpeedDDR5 4800 (PC5 38400)
  • 16 GB single module expands capacity instantly
  • DDR5 4800 MT/s bandwidth speeds up data-intensive tasks
  • CL40 latency keeps response tight under load
  • 10 V operation reduces power draw per stick
  • 288-pin DIMM fits standard desktop slots

HP 16 GB DDR5-4800 DIMM

This HP 4M9Y0AA module delivers 16 GB of DDR5 memory at 4800 MHz with a CL40 latency. It runs at 1.10 V and uses a single-rank, unbuffered design without ECC. The 288-pin DIMM fits standard desktop slots and weighs approximately 0.44 oz.

Who this suits and who should look elsewhere

This module suits builders adding a single 16 GB stick to a DDR5 platform that accepts non-ECC, unbuffered memory at 4800 MHz. It is not for systems that require registered or ECC memory, nor for boards limited to earlier DDR generations. Buyers needing a matched multi-module kit or lower latency timings should consider other options.

The spec that decides fit

The decisive specification is the DDR5-4800/PC5-38400 standard combined with 288-pin DIMM form factor. Only motherboards with DDR5 slots supporting 4800 MHz unbuffered, non-ECC memory can use this module.

Pontos fortes

  • 16 GB single module expands capacity instantly
  • DDR5 4800 MT/s bandwidth speeds up data-intensive tasks
  • CL40 latency keeps response tight under load
  • 10 V operation reduces power draw per stick
  • 288-pin DIMM fits standard desktop slots

Especificações

BrandHP
Capacity16GB
SpeedDDR5 4800 (PC5 38400)
Peso de envio0.09 kg
Dimensões da embalagem229 × 152 × 13 mm

Perguntas sobre este artigo

How can I confirm the module is running at 4800 MHz after installation?

Open Task Manager or BIOS and verify the memory speed reads 4800 MHz and CAS latency shows CL40.

What comes in the box and what must I purchase separately?

The box contains one 16 GB DDR5 DIMM; no extra cables or brackets are included, so buy nothing else unless you need additional modules.

Which version should I choose if I want a single 16 GB stick at 4800 MHz with CL40?

This 4M9Y0AA module is the only 16 GB single-rank DDR5-4800 CL40 DIMM in the lineup, so select it for that exact specification.

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