A-Tech 16GB

★★★★☆ 4.2 (31)

This 16GB DDR4 2133 MHz ECC Registered RDIMM module provides a direct, compatible replacement for Samsung M393A2G40DB0-CPB memory in select servers and workstations. Its dual-rank x4 design and standard 1.2V operation deliver reliable error correction for sustained system stability under load. This module is best for IT administrators needing a cost-effective, lifetime-warrantied memory upgrade to maintain aging server infrastructure.

Capacity 16GB
Kit 1 x 16GB
Memory DDR4
Speed 2133 MT/s
Form Factor RDIMM
ECC Yes
A-Tech 16GB ram
34 Overall Score

No current retailer price

Also available in:

Snapshot

Pros & Cons

Pros

  • Strong feature (87th percentile) 87th
  • Strong social proof (70th percentile) 70th

Cons

  • Below average latency (7th percentile)
  • Below average user sentiment (7th percentile)
  • Below average speed (23rd percentile)

What owners think

How owner sentiment changed over time

Exclusive

Based on when customers actually wrote their reviews - so you can see whether early praise held up.

Owner sentiment has improved over time
62/100Our AI sentiment readlow confidence · 9 sources · Jul 2026
1★2★3★4★5★Q2 '22: 5.0★ · 1 reviewQ3 '22: 1.0★ · 1 reviewQ1 '23: 4.0★ · 1 reviewQ2 '23: 5.0★ · 1 reviewQ3 '24: 5.0★ · 1 reviewQ3 '25: 3.5★ · 2 reviewsQ4 '25: 5.0★ · 2 reviews1111122Q2 '22Q3 '22Q1 '23Q2 '23Q3 '24Q3 '25Q4 '25
Avg ratingHappy (4-5★)Unhappy (1-2★)Bar height = number of reviews

Based on 9 dated customer reviews, grouped by calendar quarter. Period analysis is in English.

The proof

Performance

Performance Percentiles

Speed 22.5
Feature 87
Latency 6.8
Capacity 45.2
User Sentiment 6.9
Social Proof 69.5

Specifications

Full Specifications

Memory

Type DDR4
Form Factor RDIMM
Total Capacity 16384
Modules 1
Per Module 16384
Pins 288
Rank 2Rx4

Performance

Speed 2133
Voltage 1.2

Class

ECC Yes
Registered Yes

Features

RGB No

vs Competition

Spec A-Tech 16GB Kingston FURY Beast KF564C32BWEAK2-64 G.Skill Trident Z5 Royal Series F5-6000J2636H32GX2-TR5NG Corsair VENGEANCE RGB CMH64GX5M2Y6400C32 Crucial Pro Overclocking CP2K16G64C32U5B KLEVV CRAS V RGB KD5BGUA80-60A300J
Capacity 16GB 64GB 64GB 64GB 32GB 64GB
Kit 1 x 16GB 2 x 32GB 2 x 32GB 2 x 32GB 2 x 16GB 2 x 32GB
Memory Type DDR4 DDR5 DDR5 DDR5 DDR5 DDR5
Speed Mts 2133 6400 6000 6400 6400 6000
Cas Latency - CL32 CL26 CL32 CL32 CL30
Form Factor RDIMM UDIMM UDIMM UDIMM UDIMM UDIMM
Ecc true false false false false false
Compare Compare Compare Compare Compare
Product SpeedFeatureLatencyCapacityUser SentimentSocial Proof
A-Tech 16GB 22.5876.845.26.969.5
Kingston FURY Beast KF564C32BWEAK2-64 Compare 94.78787.589.990.193.4
G.Skill Trident Z5 Royal Series F5-6000J2636H32GX2-TR5NG Compare 87.48799.189.990.178.1
Corsair VENGEANCE RGB CMH64GX5M2Y6400C32 Compare 94.78787.589.997.398.2
Crucial Pro Overclocking CP2K16G64C32U5B Compare 94.772.987.570.978.787.7
KLEVV CRAS V RGB KD5BGUA80-60A300J Compare 87.48787.589.997.387.7

Usage Scores

Overall (33.5)Budget (49.7)Gaming (30.1)Laptop (28)Server (61.6)Workstation (39.4)

A full written review is coming soon. The specs, scores, prices and charts above are always up to date.

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