We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four green DDR3 DIMM modules with gold contacts, no heat spreaders

A-Tech

A-Tech 64GB Kit (4 x 16GB) DDR3 1600MHz RDIMM ECC Registered Memory Upgrade for HP Z420 Z620 Z820

SKU CH-GAQ0-JFYE1

A 64 GB DDR3 1600 MHz ECC registered kit of four 16 GB modules for HP Z420, Z620 and Z820 workstations

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeRegistered

Capacity 64GB (4 x 16GB)

  • 64 GB capacity across four 16 GB modules handles heavy workloads
  • DDR3 1600 MHz PC3-12800 speed accelerates data throughput
  • ECC registered RDIMM design detects and corrects memory errors
  • 2Rx4 dual-rank organisation maximises density per DIMM slot
  • Validated for HP Z420, Z620 and Z820 workstations

HP Z420 Z620 Z820 memory kit

This A-Tech kit supplies 64GB of DDR3 1600MHz registered ECC memory across four 16GB modules. It is built for second-generation HP Z workstations and uses a 240-pin DIMM form factor with 1.5V operation. The CL11 2Rx4 design targets reliable server-grade performance.

Workstation owners needing registered ECC

The kit suits owners of HP Z420 Z620 Z820 workstations that require registered ECC RDIMM modules. It is not for systems that only accept unbuffered ECC UDIMM memory or for platforms with a different DIMM pin count. Mixing with unbuffered modules is not supported.

Registered ECC RDIMM requirement

The single specification that decides fit is the registered ECC RDIMM design with 2Rx4 organisation. The motherboard must support registered error-correcting DDR3 DIMMs at 1600MHz. Unbuffered or non-ECC memory will not work in its place.

How it compares

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

Price $236.99
Cheaper than about 57% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $3.70 per GB
Cheaper than about 86% 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 nameA-Tech
Product line2nd Gen. HP Z Workstation Compatible
Model name64 GB (4 × 16 GB) 2Rx4 PC3-12800 RDIMM for HP Z Workstation Z420, Z620, Z820
Part numberNE-MS-0097
Total capacity64 GB (4 × 16 GB)
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1600 (PC3 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsHP Z Workstation Z420, Z620, Z820
In the box
Included itemsFour Modules
More details
VariantCompatible with HP Z Workstation Z420, Z620, Z820

Other versions of this model

5 more in the same range

Questions about this item

Do I need an HP Z420, Z620 or Z820 workstation for these modules to function?

Yes, this 64GB kit is designed for second-generation HP Z workstations — the Z420, Z620 and Z820 — and requires one of those systems to operate.

Can I keep my existing ECC UDIMM modules and add these RDIMM modules together?

No, ECC Registered RDIMM modules cannot be mixed with ECC Unbuffered UDIMM modules; the system will not recognise the mixed configuration.

How can I confirm the kit is running at DDR3 1600MHz after installation?

Enter the BIOS or use a system-information utility and verify the memory speed shows 1600MHz (PC3-12800) with CL11 timings at 1.5V.

More in Model-Specific Memory Upgrades

Similar items