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 DIMM with black chips and gold contacts

SAMSUNG

SAMSUNG M393A8G40MB2-CVF 64GB DDR4 2933 CL21 ECC Registered server RAM

SKU CH-QBTR-0A79C MPN M393A8G40MB2-CVF

64 GB DDR4 2933 ECC Registered DIMM with CL21 latency for server workloads

  • Total capacity64 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • ChipsetSamsung Chipset
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • High 64 GB capacity supports dense virtualization workloads
  • DDR4 2933 speed delivers 23400 MT/s bandwidth for demanding tasks
  • ECC registered design detects and corrects data errors automatically
  • CL21 CAS latency provides responsive timing at 1.20 V
  • 288-pin DIMM form factor fits standard server memory slots

64GB DDR4 Registered ECC Module

This 64GB DDR4 module operates at 2933 MT/s with CL21 latency and 1.20V voltage. It uses a 288-pin DIMM form factor and features a 2Rx4 rank organisation. The registered buffer and ECC functionality are designed for server platforms that require error correction and signal stability.

Suited for Registered ECC Slots Only

This module fits systems that accept registered ECC DDR4 memory. It will not function in platforms that require unbuffered non-ECC modules or that cannot address 64GB per slot. Buyers needing standard desktop memory should look elsewhere.

Registered ECC With 2Rx4 Organisation

The registered buffer and ECC parity bits combined with the 2Rx4 rank structure determine compatibility with qualified server motherboards. Verify that your platform supports registered ECC DDR4 at this density and rank configuration before purchase.

How it compares

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

Price $484.99
Pricier than about 70% 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 $7.58 per GB
Typical for this category: the median of 6,064 items is $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 nameSAMSUNG
Total capacity64 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2933 (PC4 23400)
Processor
ChipsetSamsung Chipset
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.2 V
Size & build
Shipping weight0.45 kg
Package size127 × 25 × 5 mm

Questions about this item

Is this a single 64 GB module or a kit?

This is a single 64 GB DDR4 module in a 288-pin DIMM form factor.

What does the 2933 MT/s rating mean for actual throughput?

The module is rated for DDR4-2933 (PC4-23400) operation with CL21 latency at 1.20 V.

Does the registered ECC design limit the usable speed on my server board?

The stick is specified as DDR4-2933 (PC4-23400) with CL21 registered ECC.

More in ECC Server RAM

Similar items