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Green bare circuit board DDR5 DIMM with black memory chips and gold edge contacts

Crucial

Crucial MTC10F1084S1RC48BR 16GB DDR5 4800 CL40 ECC Registered server RAM

SKU CH-JCKR-6RT8C MPN MTC10F1084S1RC48BR

16GB DDR5-4800 ECC Registered server memory with CL40 latency at 1.10V

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank1Rx8
  • 16GB DDR5 4800 boosts server throughput
  • CL40 latency keeps response times tight
  • 10V operation cuts power draw per module
  • ECC and registered design protects data integrity
  • 288-pin DIMM fits standard server slots

Server DDR5 module for registered ECC systems

This 16 GB Crucial DDR5-4800 DIMM is built for servers and workstations that require registered memory with error correction. It operates at 1.10 V and uses a single-rank 1Rx8 organisation. The module has no heat spreader.

Registered ECC with CL40 latency at 4800 MT/s

The key specification is the registered ECC design combined with a CL40 CAS latency at the DDR5-4800 data rate. This combination determines compatibility with platforms that mandate registered buffers and error-correcting code. Systems needing unbuffered or non-ECC memory cannot use this module.

Standard 288-pin DIMM installation

Installation follows the usual 288-pin DIMM procedure: align the notch, press firmly until the retention clips engage. Because the module lacks a heat spreader, clearance is rarely an issue. The main risk is mixing registered ECC with unbuffered or non-ECC DIMMs, which prevents the system from posting.

How it compares

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

Price $299.99
Pricier than about 61% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $18.75 per GB
Pricier than about 79% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameCrucial
Part numberMTC10F1084S1RC48BR
Total capacity16 GB
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Size & build
Shipping weight0.45 kg
Package size163 × 51 × 13 mm

Questions about this item

What does the 4800 MT/s rating deliver in a live server?

The module runs at DDR5 4800 (PC5 38400) with CL40 latency, giving your CPUs the bandwidth to keep more threads fed without waiting on memory.

How does the registered ECC interface affect usable speed and data integrity?

Registered buffering adds one cycle of control stability, while on-die ECC corrects single-bit errors in real time, letting the 4800 MT/s bus run reliably under sustained load.

What physical slot and power does the 1Rx8 288-pin DIMM require?

It fits a standard DDR5 288-pin RDIMM socket and operates at 1.10 V, with no heat spreader to clear oversized CPU coolers.

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