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Samsung · DDR5 ECC Reg · 128 GB

Samsung 128GB DDR5 4800MHz PC5-38400 ECC RDIMM 4Rx4 2S2Rx4 (EC8 10x4) Quad Rank 1.1V

(1X128GB) · 4800 MT/s · CL40 · 16.67 ns

Performance
71
Perf / price
6
Capacity value
28
Amazon
$3795
$3795
Available Updated 4 days, 16 hours ago
Performance71.5
Performance / price6.0
Capacity value28.4
$3795 on Amazon RAM table Compare this RAM

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Written analysis

Samsung 128GB DDR5 4800MHz PC5-38400 ECC RDIMM 4Rx4 2S2Rx4 (EC8 10x4) Quad Rank 1.1V at a glance

The Samsung 128GB DDR5 4800MHz PC5-38400 ECC RDIMM 4Rx4 2S2Rx4 (EC8 10x4) Quad Rank 1.1V from Samsung is listed as part number M321RAGA0B20-CWK and is a 128 GB DDR5 ECC Reg kit in a (1X128GB) layout on a DIMM form factor. It is ECC memory, aimed at servers and other systems that need error correction.

Best fit: Systems that explicitly support this ECC memory type and prioritize error correction over consumer overclocking features.

Performance

This kit runs at 4800 MT/s with primary timings of 40 and a calculated first-word latency of 16.67 ns. Its calculated performance score is 71.5, placing it in the basic performance tier. Because this is ECC memory, platform compatibility and the exact registered or unbuffered format must be checked separately from speed.

Cost-effectiveness

From a cost-efficiency view this kit is expensive per gigabyte at $29.6/GB. Combined capacity value is 28.4. That is a relatively weak return in this category. Similar kits at this price can offer more speed or more capacity.

Memory data

Full specifications

Kit composition, capacity, operating speed, timings, voltage, compatibility details, and pricing in one technical sheet.

General

Manufacturer
Samsung
RAM
Samsung 128GB DDR5 4800MHz PC5-38400 ECC RDIMM 4Rx4 2S2Rx4 (EC8 10x4) Quad Rank 1.1V
Part number
M321RAGA0B20-CWK
Launch price
Amazon price
$3795
Availability
In stock
Price updated
4 days, 16 hours ago

Kit

Capacity / type
128 GB / DDR5 ECC Reg
Kit / form factor
(1X128GB) / DIMM
Modules
1 × 128 GB
ECC
Yes
RGB
No
Memory profile
Not specified

Speed & timings

Data rate
4800 MT/s
CAS latency
CL40
First-word latency
16.67 ns
Primary timings
40
Voltage
1.10 V

Value

Amazon price
$3795
Price / GB
$29.65
Performance / price
6.0
Capacity value
28.4

Additional information

Color
1 Module

Amazon

Price history

Nearby performance

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Discussion

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specs above are the source for scores and tables.

Samsung DDR5 Memory RAM | Part Number: M321RAGA0B20-CWK

Single 128 GB RAM Module; DDR5 DIMM 288-Pin; Speeds up to 4800 MHz, PC5-38400 (PC5-4800B)

ECC Registered RDIMM; 4Rx4 2S2Rx4 (EC8, 10x4); JEDEC DDR5 standard 1.1V

Compatible for select Server systems ONLY; **NOT COMPATIBLE with Desktop Computers, Laptop Computers, or PCs of any kind**

Note: EC8 (10x4) ECC Registered modules cannot be mixed with EC4 (9x4) ECC Registered modules or with different ECC types such as ECC Unbuffered, ECC Load Reduced or Non-ECC Unbuffered; (Memory compatibility can vary among different system models and their installed components; please verify compatibility and follow memory channel guidelines to ensure maximum performance)

Expands your system's available memory resource improving performance, reducing bottlenecks, and increasing workload capacity