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OWC

OWC 128GB DDR4 2666 CL19 8Rx4 288-pin 1.2V ECC Registered RDIMM for ThinkAgile VX7520

SKU CH-TPK6-GDSK5

A 128GB DDR4 2666 ECC registered RDIMM with CL19 latency and 1.2V operation for Lenovo ThinkAgile VX7520 and compatible servers

  • Total capacity128 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latency19
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank8Rx4
  • 128GB single-module capacity simplifies server upgrades
  • ECC registered design protects data integrity in critical workloads
  • DDR4 2666 CL19 speed matches ThinkAgile VX7520 specifications
  • 2V operation reduces power draw per module
  • Backward compatible with 2133MHz and 2400MHz systems

Purpose-built server memory

This 128GB DDR4 2666 CL19 8Rx4 ECC Registered RDIMM is engineered for Lenovo ThinkAgile VX7520, VX5520, VX 2U, VX 2U4N and HX3521-G systems. It delivers 128GB capacity in a single 288-pin module running at 1.2V for enterprise workloads that require error correction and registered signalling.

Straightforward installation with constraints

The module seats in a standard 288-pin DDR4 slot and is backward compatible with 2133MHz and 2400MHz bus speeds. It will not work in standard desktop computers and cannot be mixed with unbuffered or load-reduced ECC memory, so verify your platform uses registered DIMMs before fitting.

Steady operation under sustained load

JEDEC-standard construction and 1.2V operation keep power draw consistent during extended server duty cycles. ECC correction maintains data integrity across long-running virtualisation and database tasks, while registered buffering reduces electrical load on the memory controller for stable throughput.

How it compares

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

Price $669.99
Pricier than about 55% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
CAS latency 19
Lower than about 70% of the 483 comparable items (median 22).
Price per GB $5.23 per GB
Cheaper than about 74% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R6D48R4128G
Total capacity128 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latency19
ECC supportYes
Buffer typeRegistered
Memory rank8Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Questions about this item

How can I verify the 128GB DDR4 2666 CL19 module is detected correctly after installation in the ThinkAgile VX7520?

The server BIOS or management console will display the installed capacity as 128GB, the speed as 2666MHz and the ECC registered status for this module.

What is included in the box and what must be purchased separately for the 128GB DDR4 2666 CL19 upgrade?

The box contains one 128GB DDR4 2666 PC4-21300 CL19 8Rx4 288-pin 1.2V ECC Registered RDIMM; no extra cables, brackets or software are required for installation.

Which capacity and rank should I choose for the ThinkAgile VX7520 — the 128GB 8Rx4 module or a different variant?

This listing is a single 128GB 8Rx4 DDR4 2666 CL19 RDIMM; select it when you need one 128GB registered ECC module for a compatible ThinkAgile server.

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