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Green rectangular circuit board with gold edge contacts and black memory chips, thin SODIMM form factor

OWC

OWC 16GB DDR5 5600 CL46 1Rx8 262-pin SODIMM for Dell OptiPlex 7420 AIO

SKU CH-6Z1M-R4AZA

A 16 GB DDR5 SODIMM running at 5600 MHz with CL46 latency, built for Dell OptiPlex 7420 AIO systems

  • Total capacity16 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8

Capacity 16GB

  • 16 GB DDR5 module expands multitasking headroom in OptiPlex 7420 AIO
  • CL46 latency at 5600 MHz keeps data flowing for everyday workloads
  • 1 V operation reduces power draw and heat inside the chassis
  • 262-pin SODIMM form factor fits the all-in-one slot without adapters
  • JEDEC and RoHS compliant for a warranty-safe upgrade path

System-specific DDR5 SODIMM for Dell OptiPlex 7420

This 16GB DDR5 5600 CL46 module is built to the exact electrical and mechanical requirements of the Dell OptiPlex 7420 AIO and 7420 AIO Plus. It installs as a single 262-pin unbuffered non-ECC SODIMM running at 1.1V, delivering a JEDEC-standard PC5-44800 upgrade path for those all-in-one workstations.

Ideal for owners adding memory to a 7420 AIO.

The part suits anyone expanding a compatible OptiPlex 7420 AIO or 7420 AIO Plus where a factory-matched SODIMM is required. Builders working on standard laptops, desktops, NAS units or any system outside the named Dell models should look elsewhere because the module is validated only for those specific all-in-one configurations.

Fits the AIO SO-DIMM slot

The stick occupies one 262-pin DDR5 SO-DIMM socket inside the OptiPlex 7420 AIO chassis, leaving any additional slot available for a second module to reach higher total capacity. No heat spreader is fitted, so clearance matches the original Dell layout, and the 1.1V JEDEC voltage draws power within the system's standard memory budget.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $240.99
Cheaper than about 57% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $15.06 per GB
Pricier than about 61% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number5S6D51R816 GB
Total capacity16 GB
Product type262-Pin DDR5 Non-ECC SODIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latencyCL46
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell OptiPlex 7420 AIO
Dell OptiPlex 7420 AIO Plus

Other versions of this model

5 more in the same range

Questions about this item

What Dell OptiPlex all-in-one models must I own for this 262-pin DDR5 SODIMM to work?

The module is validated for the Dell OptiPlex 7420 AIO and 7420 AIO Plus.

Will this CL46 DDR5 5600 module run stably alongside the original memory already installed in my OptiPlex 7420 AIO?

It operates at the standard JEDEC 5600 MT/s CL46 1.1 V profile, so the system will negotiate a common speed and timing with any existing DDR5 SODIMMs.

How can I confirm the 16 GB upgrade is recognised at 5600 MT/s after I seat the SODIMM?

Open Task Manager → Performance → Memory or run a tool like CPU-Z; the speed field should read 5600 MT/s and the total capacity should show the added 16 GB.

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