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Green circuit board with black memory chips and gold edge connectors

OWC

OWC 64GB DDR4 2933MHz CL21 ECC Registered RDIMM 2Rx4 1.2V 288pin memory upgrade

SKU CH-1J30-VYTJ4

64 GB DDR4-2933 ECC registered RDIMM for Lenovo ThinkAgile Xeon SP Gen 2 servers HX3720, HX3721 and VX3720

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

Capacity 64GB

  • 64GB capacity supports large server workloads
  • DDR4 2933MHz CL21 delivers responsive data throughput
  • ECC Registered design corrects errors for uptime
  • 2V operation reduces power draw and heat
  • Validated for Lenovo ThinkAgile HX3720 HX3721 VX3720

64 GB DDR4 2933 MHz ECC Registered RDIMM

This 64 GB DDR4 module runs at 2933 MHz with CL21 latency and 1.2 V operation. It is a 288-pin ECC Registered RDIMM built for Lenovo ThinkAgile systems using Xeon SP Gen 2 processors. The dual-rank 2Rx4 design targets server and workstation workloads that require error correction and registered buffering.

Registered ECC — not for desktops

The single specification that decides fit is the Registered ECC design. This memory will not work in standard desktop computers and cannot be mixed with unbuffered modules. It is validated for Lenovo ThinkAgile HX3720, HX3721 and VX3720 platforms and replaces Lenovo part numbers 4X70V98063, 4ZC7A08710 and 4ZC7A08744.

Suits ThinkAgile Xeon SP Gen 2 servers.

Builders upgrading Lenovo ThinkAgile HX3720, HX3721 or VX3720 servers gain a supported 64 GB capacity with ECC protection. Buyers who need unbuffered non-ECC memory for consumer motherboards or who want to mix registered and unbuffered DIMMs should look elsewhere.

How it compares

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

Price $418.99
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 $6.55 per GB
Cheaper than about 60% 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
Compatibility
Compatible systemsLenovo ThinkAgile (Xeon SP Gen 2) HX3720
Lenovo ThinkAgile (Xeon SP Gen 2) HX3721
Lenovo ThinkAgile (Xeon SP Gen 2) VX3720

Other versions of this model

5 more in the same range

Questions about this item

Will this 2933MHz module actually run at 2933MHz in my ThinkAgile HX3720?

Yes, the module is rated for DDR4 2933 (PC4-23400) and will operate at that speed when the server's memory controller supports it.

Does the ECC Registered design limit which slots or channels I can populate?

The module uses a 288-pin DDR4 ECC Registered RDIMM interface, which is the standard for these ThinkAgile servers and does not impose additional slot restrictions beyond the platform's own rules.

Will the 288-pin RDIMM fit the memory slots in a ThinkAgile VX3720 without a heat spreader?

Yes, the 288-pin form factor matches the server's DIMM slots and the lack of a heat spreader does not affect physical installation.

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