We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green rectangular DDR5 RDIMM module with black memory chips on both sides, gold contacts along bottom edge, no heat spreader

Kingston Technology Corp.

Kingston Technology Corp. KSM48R40BD4-64MD 64GB DDR5 4800 CL40 2Rx4 Registered server RAM

SKU CH-XVFP-AHAM2 MPN KSM48R40BD4-64MD

64 GB DDR5 RDIMM with ECC, registered signal, CL40 latency and 4800 MHz speed for server workloads

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Memory timings40-39-39
  • Rated voltage1.1 V
  • Buffer typeRegistered

Capacity 64GB

Rank 2Rx4

Model Micron, DRAM Lock

  • 64 GB capacity handles heavy server workloads
  • DDR5 4800 speed moves data fast
  • Registered signal with ECC protects data integrity
  • Dual-rank 2Rx4 organisation increases memory density
  • CL40 latency gives quick access times

64GB DDR5 RDIMM for Servers

This 64GB DDR5 registered DIMM runs at 4800 MT/s with CL40 latency and 1.10V operation. It is built for servers and workstations that require error-correcting memory and registered signal integrity.

Registered ECC with Dual-Rank Layout

The registered buffer reduces electrical load on the memory controller, while on-die ECC corrects single-bit errors to protect data integrity. A 2Rx4 organisation delivers high density within a single 288-pin module.

DDR5 4800 CL40 2Rx4 Registered

This module only works in platforms that support DDR5 RDIMMs with registered signalling and ECC. It will not function in consumer desktop boards, laptops or any system limited to unbuffered UDIMMs.

How it compares

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

Price $2,005.99
Pricier than about 87% of the 6,523 comparable items (median $188.99).
Total capacity 64 GB
Higher than about 70% of the 6,064 comparable items (median 32 GB).
Price per GB $31.34 per GB
Pricier than about 90% 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 nameKingston
Model nameKSM48R40BD4-64MD
Total capacity64 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
Memory timings40-39-39
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Size & build
Shipping weight0.02 kg
Package size165 × 46 × 8 mm

Other versions of this model

5 more in the same range

Questions about this item

Will the 2Rx4 registered ECC module need any firmware updates or component replacements during its service life?

The module has no heat spreader and no user-serviceable parts; registered ECC DDR5 DIMMs are not field-upgradable and require no scheduled maintenance.

What limit appears first when the 4800 MHz CL40 kit runs sustained workloads?

The CL40 latency and 1.10 V operating point set the timing and voltage envelope; sustained throughput is bounded by the 4800 MT/s data rate and dual-rank organisation.

How much heat and noise does a 64 GB stick produce when the server runs all day?

With no heat spreader and a standard 1.10 V DDR5 voltage, the module relies on chassis airflow; it adds no active cooling and generates no audible noise.

More in ECC Server RAM

Similar items