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Green rectangular DDR4 UDIMM with black chips and gold contacts

Hynix

Hynix HMA851U6DJR6N-XN 4GB DDR4 3200 MHz CL22 1.2V UDIMM

SKU CH-BDGY-718CV

4 GB DDR4 SDRAM desktop module running at 3200 MHz with CL22 latency and 1.2 V operation

  • 4 GB capacity expands system memory for everyday tasks
  • 3200 MHz DDR4 speed supports responsive application loading
  • CL22 latency delivers stable timing at standard voltage
  • 2 V operation reduces power draw and heat output
  • 288-pin UDIMM form factor fits standard desktop DIMM slots

Hynix 4GB DDR4-3200 UDIMM

This Hynix module delivers 4GB of DDR4 memory at 3200 MHz with a CL22 latency. It uses a 288-pin UDIMM form factor and runs at 1.2 volts. The single-rank, non-ECC design suits standard desktop platforms. It is aimed at users adding basic capacity to a home or office system.

Thermals noise and power in normal use

Operating at the standard 1.2 V DDR4 voltage keeps power draw low during typical workloads. The unbuffered design generates minimal heat without active cooling. Silent operation is assured because the module has no moving parts. This makes it a low-maintenance upgrade for everyday computing.

Upgrading from lower capacity or slower DDR4

Replacing a 2GB stick or a slower DDR4 module with this 4GB PC4-25600 unit adds headroom for multitasking. The jump is worthwhile when the board has free slots and the CPU memory controller supports the 3200 MHz data rate. Buyers who need more than 4GB per slot should look at higher-density modules.

Highlights

  • 4 GB capacity expands system memory for everyday tasks
  • 3200 MHz DDR4 speed supports responsive application loading
  • CL22 latency delivers stable timing at standard voltage
  • 2 V operation reduces power draw and heat output
  • 288-pin UDIMM form factor fits standard desktop DIMM slots

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 288-pin UDIMM and what step is often missed?

Align the notch on the module with the key in the DDR4 slot, press down firmly until both retention clips click into place, and verify the module sits flush; the step often missed is checking that both clips have fully engaged.

What maintenance or replacement will this 4 GB DDR4 module need later?

No scheduled maintenance is required; keep the slot and contacts free of dust, and replace the module only if memory errors appear or a larger capacity is desired.

What limit appears first during sustained use of this CL22 1.2 V module?

The CAS latency of 22 cycles at 3200 MHz sets the response-time floor, so latency-sensitive workloads hit that timing ceiling before thermal or voltage limits become a factor.

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