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 printed circuit board with black memory chips in a 288-pin DDR5 RDIMM form factor

OWC

OWC 32GB DDR5 4800 PC5-38400 CL40 2Rx8 288-pin 1.1V ECC Registered RDIMM memory upgrade for ThinkStation P7 PX

SKU CH-3HDA-49R5Q

32 GB DDR5 4800 ECC registered RDIMM for ThinkStation P7 and PX workstations

  • Total capacity32 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx8

Capacity 32GB

  • 32 GB capacity lets you run larger workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC registered design detects and corrects memory errors
  • 1 V operation reduces power draw
  • Validated for ThinkStation P7 and PX systems

Product identity

This is a single 32GB DDR5 ECC Registered RDIMM from OWC, rated at 4800 MT/s with CL40 latency and a 1.1V operating voltage. It uses a 288-pin form factor and a 2Rx8 rank configuration without a heat spreader. The module is validated for Lenovo ThinkStation P7 and PX workstations and replaces Lenovo part numbers 4X71M22549, 4X77A77031 and 4X77A81440.

Who it suits and who it does not

This memory is intended for workstations and servers that require registered ECC DDR5 modules. It will not function in standard desktop computers that accept only unbuffered memory, and it cannot be mixed with unbuffered or load-reduced ECC DIMMs. Buyers who need non-ECC or unbuffered modules should look at a different product line.

Deciding specification

The registered ECC design is the single factor that determines whether this module will work in a given system. Only platforms that explicitly support DDR5 RDIMM memory with a 2Rx8 organisation can use it.

How it compares

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

Price $841.99
Pricier 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 $26.31 per GB
Pricier than about 72% 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 number4R8D52R832 GB
Total capacity32 GB
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsLenovo ThinkStation P7
Lenovo ThinkStation PX

Other versions of this model

5 more in the same range

Questions about this item

How much power does the 1.1V DDR5 module draw during sustained workloads?

It runs at 1.1 V, the standard DDR5 operating voltage, keeping power draw low even under continuous load in ThinkStation P7 or PX workstations.

Does my ThinkStation P7 or PX need a specific BIOS version or CPU to accept this ECC registered RDIMM?

The module is validated for Lenovo ThinkStation P7 and PX systems and replaces Lenovo part numbers 4X71M22549, 4X77A77031 and 4X77A81440.

Can I mix this 2Rx8 registered ECC DIMM with the unbuffered ECC sticks already in my workstation?

No — registered ECC memory cannot be mixed with unbuffered or load-reduced ECC modules; all slots must use registered DIMMs.

More in Model-Specific Memory Upgrades

Similar items