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Four green DDR3 DIMMs with black chips and gold contacts

SK hynix

SK hynix 64GB 4x16GB DDR3-1866 ECC Registered DIMM

SKU CH-S4D2-WSPZ6

A 64 GB quad-channel DDR3-1866 ECC registered memory kit with four 16 GB 240-pin DIMMs for the Late 2013 Mac Pro

  • Total capacity64 GB (4 × 16 GB)
  • Product type240-Pin DDR3 SDRAM
  • 64 GB total capacity from four 16 GB modules
  • DDR3-1866 speed rated at PC3-14900
  • ECC registered design detects and corrects data errors
  • 240-pin DIMM form factor fits compatible workstations
  • Operates at standard 1.5 V DDR3 voltage

Mac Pro Late 2013 DDR3 kit

This 64 GB kit contains four 16 GB DDR3-1866 registered ECC DIMMs built for the Late 2013 Apple Mac Pro. Each module runs at 1.5 V and uses the 240-pin form factor required by that workstation.

Suited for Mac Pro upgrades, not other platforms

The modules target owners of the Late 2013 Mac Pro who need the full 64 GB capacity with error-correcting registered memory. Builders working on standard PC motherboards or non-Mac workstations should look elsewhere because the registered ECC design and specific timing are tailored to that single platform.

64 GB headroom for heavy workloads

Four 16 GB sticks deliver 64 GB total, letting the Mac Pro handle large virtual machines, video timelines and scientific data sets without paging. The 2rx4 organisation and DDR3-1866 speed set the ceiling; workloads that demand faster transfer rates or higher densities will exceed what this kit can provide.

How it compares

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

Price $139.99
Cheaper than about 63% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $2.19 per GB
Cheaper than about 93% 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
Total capacity64 GB (4 × 16 GB)
Product type240-Pin DDR3 SDRAM

Questions about this item

Will this 240-pin DDR3 kit fit a Late 2013 Mac Pro without an adapter?

The 240-pin DDR3 DIMMs match the Late 2013 Mac Pro memory slots directly, so no adapter is needed.

Can I mix these 1866 MHz ECC registered modules with slower DDR3 sticks I already have?

The Mac Pro will run all installed memory at the speed of the slowest module, so mixing with slower DDR3 reduces overall bandwidth.

How can I confirm the 64 GB kit is recognised at 1866 MHz after installation?

Open System Report in macOS and check the Memory section; it should show 64 GB total across four slots at 1866 MHz with ECC enabled.

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