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
Two green DDR5 ECC RDIMM sticks in static bag

OWC

OWC 128GB (2x64GB) DDR5 4800 CL40 ECC Registered RDIMM ThinkStation P7 PX memory upgrade

SKU CH-N2FC-A4EM1

128 GB dual-channel DDR5-4800 ECC registered kit with CL40 latency and 1.1 V operation for Lenovo ThinkStation P7 and PX workstations

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 128GB (2 x 64GB)

  • ECC registered design protects data integrity in workstations
  • 128 GB kit (2 × 64 GB) expands memory capacity
  • DDR5 4800 CL40 at 1.1 V delivers JEDEC-standard speed
  • 288-pin RDIMM form factor fits ThinkStation P7 and PX
  • 2Rx4 organisation enables high-density registered performance

Purpose-built workstation memory

This 128 GB kit comprises two 64 GB DDR5 4800 CL40 registered ECC RDIMMs built for Lenovo ThinkStation P7 and PX systems. It targets professionals who need maximum capacity with error correction for mission-critical workloads.

Build integration requirements

Modules operate at 1.1 V and use the 288-pin RDIMM form factor with 2Rx4 organisation. They require a platform that supports registered ECC DDR5 and cannot be mixed with unbuffered or load-reduced DIMMs.

What the kit delivers

The matched pair enables full-channel population for optimal bandwidth while maintaining JEDEC compliance. Registered buffering reduces electrical load on the memory controller, allowing dense 64 GB modules to run reliably at 4800 MT/s.

How it compares

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

Price $2,683.99
Pricier than about 72% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $20.97 per GB
Pricier than about 66% 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 number4R8D52R4128P
Total capacity128 GB (2 × 64 GB)
Product type288-Pin DDR5 ECC RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
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

Will the 4800 MT/s speed hold under sustained all-core workloads?

The kit runs at DDR5 4800 (PC5-38400) with CL40 latency at the standard 1.1 V JEDEC voltage; the workstation's memory controller and cooling determine whether that speed is maintained continuously.

How much heat do the two 64 GB modules add when the system runs all day?

The modules have no heat spreader and operate at the standard 1.1 V DDR5 voltage, so thermal load is minimal; overall case airflow and the ThinkStation's own cooling solution handle the heat.

Which Lenovo workstations must I already own for this 128 GB kit to work?

The upgrade is validated for Lenovo ThinkStation P7 and ThinkStation PX systems that accept 288-pin DDR5 ECC Registered RDIMMs.

More in Model-Specific Memory Upgrades

Similar items