OWC 64GB DDR4 3200MHz PC4-25600 ECC Registered RDIMM – CL22, 2RX4, 1.2V, 288-Pin – Workstation & Server Memory
OWC 64GB DDR4 3200MHz PC4-25600 ECC Registered RDIMM – CL22, 2RX4, 1.2V, 288-Pin – Workstation & Server Memory
OWC 64GB DDR4 3200MHz PC4-25600 ECC Registered RDIMM – CL22, 2RX4, 1.2V, 288-Pin – Workstation & Server Memory
OWC 64GB DDR4 3200MHz PC4-25600 ECC Registered RDIMM – CL22, 2RX4, 1.2V, 288-Pin – Workstation & Server Memory
OWC 64GB DDR4 3200MHz PC4-25600 ECC Registered RDIMM – CL22, 2RX4, 1.2V, 288-Pin – Workstation & Server Memory
OWC 64GB DDR4 3200MHz PC4-25600 ECC Registered RDIMM – CL22, 2RX4, 1.2V, 288-Pin – Workstation & Server Memory

OWC 64GB DDR4 3200MHz PC4-25600 ECC Registered RDIMM – CL22, 2RX4, 1.2V, 288-Pin – Workstation & Server Memory

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64GB ECC Registered DDR4. Maximum Capacity Per Slot.

The OWC 64GB DDR4 3200MHz ECC Registered RDIMM is the highest-capacity single-stick professional memory module in the OWC DDR4 ECC lineup. Running at DDR4-3200 (PC4-25600) with ECC error correction and registered buffering, this module delivers the reliability and capacity that the most demanding workstation and server workloads require. Populate all 8 slots of the ASRock WRX80 CREATOR R2.0 for a staggering 512GB of ECC registered DDR4. Backed by OWC's Lifetime Advance Replacement Warranty and free tech support.

⚠️ Important: This is ECC Registered (RDIMM) memory designed for workstations and servers. It is NOT compatible with standard desktop computers and cannot be mixed with unbuffered memory.

OWC 64GB DDR4 3200MHz ECC Registered RDIMM single stick product shot

64GB — DDR4-3200 ECC Registered

OWC DDR4 RDIMM spec infographic

A single 64GB DDR4-3200 (PC4-25600) ECC Registered DIMM running at CL22 timings, 2RX4 rank configuration, and 1.2V operating voltage. 288-pin form factor compatible with sWRX8 (Threadripper PRO), SP3, and other server/workstation platforms supporting RDIMM memory. 100% JEDEC compliant and RoHS certified. Designed and tested to meet or exceed all manufacturer OEM specs.

Easy Installation — OWC Has You Covered

OWC Memory Installation infographic

OWC memory installs in minutes. Installation instructions are included, and OWC provides instructional videos, phone/chat/email tech support, and a Lifetime Advance Replacement program — meaning if you ever have an issue, OWC ships replacement memory to you before you return the old module.

Lifetime Advance Replacement Warranty

OWC Lifetime Warranty infographic

OWC has been in business for 35+ years and still honors every warranty replacement. The Lifetime Advance Replacement Program ships you new memory immediately upon a warranty claim. Free tech support by phone, chat, or email is included for life.

Build the Ultimate Workstation

OWC Performance Upgrade lifestyleOWC Server Memory lifestyle

Populate all 8 slots of the ASRock WRX80 CREATOR R2.0 with eight of these 64GB modules for a full 512GB ECC registered DDR4 configuration alongside an AMD Ryzen Threadripper PRO 5995WX. The ultimate single-socket workstation memory configuration.

Key Features

  • Capacity: 64GB (1x64GB)
  • Type: DDR4 ECC Registered (RDIMM)
  • Speed: DDR4-3200 (PC4-25600)
  • CAS Latency: CL22
  • Rank: 2RX4
  • Voltage: 1.2V
  • Pins: 288-pin
  • ECC: Yes
  • Buffered: Registered (RDIMM)
  • Compliance: 100% JEDEC, RoHS
  • Warranty: Lifetime Advance Replacement
  • Tech Support: Free, lifetime (phone/chat/email)
  • NOT Compatible With: Standard desktop computers, unbuffered memory

Specs

  • Brand: OWC (Other World Computing)
  • Capacity: 64GB
  • Type: DDR4 ECC Registered RDIMM
  • Speed: DDR4-3200 (PC4-25600)
  • CAS Latency: CL22
  • Rank: 2RX4
  • Voltage: 1.2V
  • Pins: 288-pin
  • ECC: Yes
  • Buffered: Registered
  • JEDEC Compliant: Yes
  • RoHS: Yes
  • Warranty: Lifetime Advance Replacement

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