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Green circuit board with black memory chips and gold edge connectors

Crucial

Crucial MTC20C2085S1EC48BA1R 32GB DDR5 4800 CL40 ECC UDIMM server RAM

SKU CH-8K6B-HJYHJ MPN MTC20C2085S1EC48BA1R

32 GB DDR5 4800 ECC UDIMM with CL40 timing for workstations and entry-level servers

  • Total capacity32 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Memory timings40-39-39
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • 32 GB capacity handles demanding workloads
  • DDR5 4800 speed delivers high bandwidth
  • ECC protection detects and corrects memory errors
  • CL40 latency with 40-39-39 timing
  • 10 V operation reduces power consumption

32GB DDR5 4800 ECC UDIMM

This 32GB DDR5 module runs at 4800 MT/s with CL40 timings of 40-39-39 and operates at 1.10V. It is an unbuffered ECC UDIMM built with a 2Rx8 dual-rank layout. The part is engineered for cost-effective performance in workstations and entry-level servers.

Workstations and entry servers needing ECC

Suits builders who want error-correcting memory for office applications, digital media design, video editing or hosting web content without registered DIMM support. Not for platforms that require registered or load-reduced modules, or for systems limited to lower-density single-rank UDIMMs.

32GB single-module capacity

One module provides 32GB of addressable memory, giving headroom for multi-tasking workloads and moderate virtualization. Capacity runs out when the board's maximum UDIMM limit is reached or when registered memory is required for larger configurations.

How it compares

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

Price $450.99
Pricier than about 69% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $14.09 per GB
Pricier than about 74% of the 6,064 comparable items (median $7.25 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 nameCrucial
Part numberMTC20C2085S1EC48BA1R
Total capacity32 GB
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
Memory timings40-39-39
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.1 V
Size & build
Shipping weight0.05 kg
Package size178 × 57 × 6 mm

Questions about this item

Does my motherboard need to accept DDR5 4800 UDIMMs with ECC for this 32 GB module to function?

Yes — this module is a DDR5 4800 ECC UDIMM, so the board must support DDR5, the UDIMM form factor, and ECC operation.

Can I add this 2Rx8 CL40 stick to an existing bank of CL40 DDR5 4800 ECC UDIMMs?

Yes — matching speed, latency, rank, and ECC type allows it to run alongside identical modules.

How do I confirm the module runs at 4800 MT/s with 40-39-39 timings after installation?

Check the memory speed and timings in BIOS/UEFI or a system-information tool; they should read 4800 MT/s and 40-39-39.

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