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Green circuit board with black memory chips and gold edge connector

OWC

OWC RNAB083B6KR5T 8GB DDR4 2933MHz ECC-R RDIMM desktop RAM

SKU CH-T0DM-5Q81W MPN RNAB083B6KR5T

8GB DDR4 2933MHz ECC registered RDIMM for Mac Pro 2019 and 2020 models

  • 8GB capacity expands Mac Pro memory headroom
  • ECC registered design protects data integrity under load
  • 2933MHz DDR4 speed matches Mac Pro 2019 specifications
  • RDIMM form factor ensures correct slot fitment
  • Validated for Mac Pro 2019 and 2020 models

8 GB DDR4 ECC-RDIMM for Mac Pro

This 8 GB DDR4 ECC registered DIMM runs at 2933 MHz and is validated for the 2019 and 2020 Mac Pro. It suits professionals expanding memory on supported workstation configurations.

Thermals power and noise

The module operates within standard DDR4 voltage and thermal limits for registered ECC memory. No active cooling is required and acoustic impact is negligible in a populated Mac Pro chassis.

Upgrade path and mixed-configuration constraint

The Mac Pro accepts either RDIMM or LRDIMM modules but they cannot be mixed; the system will not function with a combined configuration. Buyers who need higher density per slot must choose one technology and populate all channels accordingly.

How it compares

Measured against everything we stock in Desktop RAM, at today’s prices. Recalculated every night.

Price $22.99
Cheaper than about 85% of the 3,647 comparable items (median $90.99).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Size & build
Shipping weight0.05 kg
Package size178 × 25 × 3 mm

Questions about this item

How do I install this OWC RDIMM in my Mac Pro 2019, and what mistake should I avoid?

Power down, open the case, and seat the module in an empty DDR4 slot; the critical error is mixing this RDIMM with any LRDIMM because the system will not boot with a mixed configuration.

What maintenance or replacement will this 8 GB DDR4 ECC-R module need over time?

No routine maintenance is required; if a fault occurs the OWC lifetime limited warranty with advanced replacement covers a swap.

What limit appears first when this memory runs sustained workloads in a Mac Pro?

The 8 GB capacity is the first bottleneck; once the working set exceeds it the system must swap to storage, slowing performance.

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