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OWC

OWC 32GB DDR4 3200 CL22 1.2V UDIMM Lenovo ThinkCentre M70s M70t M75s M75t M90t memory upgrade

SKU CH-AWHD-9NWA6

A 32GB DDR4 3200 CL22 UDIMM that upgrades compatible Lenovo ThinkCentre M70s, M70t, M75s, M75t and M90t desktops

  • Total capacity32 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • 32 GB capacity expands multitasking headroom for demanding workloads
  • DDR4 3200 speed with CL22 latency delivers responsive system performance
  • 2 V low-voltage operation reduces power draw and heat
  • 288-pin UDIMM form factor fits Lenovo ThinkCentre M70s G3 M70t G3 M75s G2 M75t G2 M90t G2
  • Backward compatible with 2133 2400 2666 2933 MHz systems for flexible deployment

System-Specific Upgrade for ThinkCentre Desktops

This OWC 32GB DDR4 module targets owners of Lenovo ThinkCentre M70s G3, M70t G3, M75s G2, M75t G2 and M90t G2 systems who need more memory for multitasking or larger workloads. It is a 288-pin non-ECC UDIMM rated at 3200MHz with CL22 latency and 1.2V operation. Buyers whose machines use a different form factor, require ECC or registered memory, or need capacities beyond a single 32GB stick should look elsewhere.

JEDEC-Compliant Module with Backward Speed Support

The stick meets JEDEC PC4-25600 specifications and is ROHS compliant, ensuring a warranty-safe upgrade that matches OEM requirements. Because it is backward compatible with 2133MHz, 2400MHz, 2666MHz and 2933MHz buses, it will downclock automatically if the platform runs at a lower speed. No extra software, drivers or heat spreaders are bundled; the performance gain comes solely from the added capacity and standard DDR4 timing.

Straightforward DIY Installation with Video Guidance

Installation follows the usual desktop DIMM procedure: power off, open the chassis, align the notch with the slot key, and press firmly until the retention clips click. The most common issues are seating the module incompletely, mixing speeds that force the system to the slowest common denominator, or exceeding the motherboard’s maximum supported capacity per slot. OWC provides a basic installation video for reference.

How it compares

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

Price $176.99
Cheaper than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $5.53 per GB
Cheaper than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number3U2D42R832 GB
Total capacity32 GB
Product type288-Pin DDR4 Non-ECC UDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo ThinkCentre M70s G3
Lenovo ThinkCentre M70t G3
Lenovo ThinkCentre M75s G2
Lenovo ThinkCentre M75t G2
Lenovo ThinkCentre M90t G2

Other versions of this model

5 more in the same range

Questions about this item

Does the 32GB DDR4 3200 CL22 module require any maintenance or replacement over its lifespan?

No, the unbuffered non-ECC UDIMM has no moving parts and needs no periodic maintenance or scheduled replacement.

What limit appears first when the 32GB DDR4 3200 CL22 kit runs sustained workloads?

The DDR4 3200 CL22 1.2V JEDEC specification sets the speed and latency ceiling under continuous use.

How much noise, heat and power does the 32GB DDR4 3200 CL22 stick produce when running all day?

The module operates silently at 1.2V with no heat spreader, so it adds minimal heat and zero noise to the ThinkCentre chassis.

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