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
Green rectangular DDR4 memory module with gold contacts and black chips on both sides

OWC

OWC 64GB DDR4 2933MHz ECC RDIMM CL21 1.2V 288-pin memory upgrade

SKU CH-HMKR-ADMKN

64GB DDR4 2933MHz ECC registered DIMM for Lenovo ThinkAgile Xeon SP Gen 2 servers

  • Total capacity64 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 64GB

  • 64 GB capacity supports large workloads in Lenovo ThinkAgile servers
  • ECC registered design detects and corrects data errors for reliability
  • 2933 MHz DDR4 speed with CL21 latency delivers responsive performance
  • 2 V operation reduces power draw in compatible systems
  • Validated for HX2320 HX2321 HX3320 HX3321 HX3520-G models

64GB DDR4 ECC RDIMM for Lenovo ThinkAgile

This 64GB DDR4 2933MHz ECC registered DIMM is built for Lenovo ThinkAgile HX2320, HX2321, HX3320, HX3321 and HX3520-G servers. It targets administrators who need to expand memory capacity in these specific Xeon SP Gen 2 platforms. The module operates at 1.2V with CL21 latency and a 2Rx4 rank configuration.

DDR4 2933MHz registered ECC constraints

The DDR4 2933MHz registered ECC standard requires a server or workstation memory controller that supports registered modules. It will not function in standard desktop computers and cannot be mixed with unbuffered memory. Backward compatibility covers 2133MHz, 2400MHz and 2666MHz speeds, but the system will run all modules at the lowest common rate.

Tool-free DIMM installation with seating checks

Installation follows the standard 288-pin DIMM procedure: align the notch, press firmly until the retention clips click, and verify the module sits evenly. The most common issue is incomplete seating, which causes boot failures or memory errors. Because registered ECC modules cannot be mixed with unbuffered types, confirm every slot uses matching registered DIMMs before powering on.

How it compares

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

Price $384.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $6.02 per GB
Cheaper than about 65% 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 number2R9D42R464 GB
Total capacity64 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

Is this 64GB module the only capacity available for the ThinkAgile HX2320 HX2321 HX3320 HX3321 HX3520-G?

The listed part number 2R9D42R464GB is a single 64GB DDR4 2933MHz ECC Registered DIMM. Other capacities may exist under different part numbers but are not covered by this specific upgrade.

What does the 2933MHz speed rating deliver once installed in a ThinkAgile server?

The module runs at DDR4 2933 PC4-23400 with CL21 latency at 1.2V. In a compatible Xeon SP Gen 2 system it provides the rated bandwidth; if the platform operates at a lower memory speed the DIMM will downclock automatically.

Does the 288-pin RDIMM interface limit mixing with other memory types in these servers?

Yes. This is an ECC Registered 2Rx4 RDIMM. It cannot be mixed with unbuffered UDIMMs and requires a platform that supports registered memory, such as the listed ThinkAgile Xeon SP Gen 2 models.

More in Model-Specific Memory Upgrades

Similar items