OWC OWC2C6D42R816GB-C334-SF DDR4-2666

★★★★☆ 3.7 (4)

Equipped with ECC unbuffered memory and a 2Rx8 rank configuration, this 16GB DDR4-2666 module ensures data integrity for mission-critical NAS and server applications. It serves as a direct, JEDEC-compliant replacement for QNAP and Synology OEM parts, backed by a limited lifetime warranty and an advanced replacement program. This module is best for system administrators upgrading compatible NAS devices or small servers where error correction and 24/7 stability are non-negotiable.

Capacity 16GB
Kit 1 x 16GB
Memory DDR4
Speed 2666 MT/s
CAS Latency CL19
Form Factor SODIMM
ECC Yes
OWC OWC2C6D42R816GB-C334-SF DDR4-2666 ram
39 Overall Score
Also available in:

Snapshot

Pros & Cons

Pros

Cons

  • Below average social proof (5th percentile)

The proof

Performance

Performance Percentiles

Speed 37.4
Feature 56.7
Latency 36.6
Capacity 45.3
Social Proof 5.1
Affordability 51

Specifications

Full Specifications

Memory

Type DDR4
Form Factor SODIMM
Total Capacity 16384
Modules 1
Per Module 16384
Pins 260
Rank 2Rx8

Performance

Speed 2666
CAS Latency 19
Voltage 1.2

Class

ECC Yes
Registered No
OC Profile Not Applicable

Features

RGB No
Heat Spreader No

vs Competition

Spec OWC OWC2C6D42R816GB-C334-SF Kingston Fury Renegade KF564C32RWAK2-32 G.Skill Trident Z5 RGB Series F5-7600J3646G16GX2-TZ5RK Corsair Vengeance RGB CMH32GX5M2B6000C28 Crucial Pro Overclocking CP2K16G64C32U5B Team Group T-CREATE EXPERT CTCWD532G6400HC32ADC01
Capacity 16GB 32GB 32GB 32GB 32GB 32GB
Kit 1 x 16GB 2 x 16GB 2 x 16GB 2 x 16GB 2 x 16GB 2 x 16GB
Memory Type DDR4 DDR5 DDR5 DDR5 DDR5 DDR5
Speed Mts 2666 6400 7600 6000 6400 6400
Cas Latency CL19 CL32 CL36 CL28 CL32 CL32
Form Factor SODIMM UDIMM UDIMM UDIMM UDIMM UDIMM
Ecc true false false false false false
Compare Compare Compare Compare Compare
Product SpeedFeatureLatencyCapacitySocial ProofAffordability
OWC OWC2C6D42R816GB-C334-SF 37.456.736.645.35.151
Kingston Fury Renegade KF564C32RWAK2-32 Compare 94.789.587.770.985.619
G.Skill Trident Z5 RGB Series F5-7600J3646G16GX2-TZ5RK Compare 98.789.595.670.974.88.9
Corsair Vengeance RGB CMH32GX5M2B6000C28 Compare 87.489.597.270.977.215.3
Crucial Pro Overclocking CP2K16G64C32U5B Compare 94.774.887.770.985.628
Team Group T-CREATE EXPERT CTCWD532G6400HC32ADC01 Compare 94.774.887.770.992.323.2

Price

Value & Pricing

From £200 1 offer across 1 retailer
Amazon 1 offer From £200

We started tracking prices for this product on Jun 13, 2026. The chart appears once we have more data.

Usage Scores

Overall (39.3)Budget (56.3)Gaming (35.1)Laptop (50.6)Server (21.4)Workstation (38.6)

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

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