Samsung M321RAGA0B20-CWK 128GB DDR5-4800
The 128GB DDR5 registered DIMM runs at 4800 MT/s with ECC and 4Rx4 2S2Rx4 organization, delivering high-capacity memory for server workloads. Its 1.1V JEDEC standard and quad-rank design support dense configurations, though it is strictly limited to select server systems and cannot be mixed with other ECC types. Best for server administrators expanding memory capacity in compatible RDIMM-based systems, not for desktop or laptop use.
Capacity 128GB
Kit 1 x 128GB
Memory DDR5
Speed 4800 MT/s
Form Factor DIMM
ECC Yes
63 Overall Score
No current retailer price
Snapshot
Pros & Cons
Pros
- Strong capacity (97th percentile) 97th
- Strong feature (90th percentile) 90th
- Strong speed (68th percentile) 68th
Cons
- Below average affordability (1st percentile)
- Below average latency (14th percentile)
The proof
Performance
Specifications
Full Specifications
Memory
| Type | DDR5 |
| Form Factor | DIMM |
| Total Capacity | 131072 |
| Modules | 1 |
| Per Module | 131072 |
| Pins | 288 |
| Rank | 4Rx4 2S2Rx4 |
Performance
| Speed | 4800 |
| Voltage | 1.1 |
Class
| ECC | Yes |
| Registered | Yes |
Features
| RGB | No |
vs Competition
| Spec | Samsung M321RAGA0B20-CWK | 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 KD5KGUD80-60A300G-BLACK |
|---|---|---|---|---|---|---|
| Capacity | 128GB | 64GB | 64GB | 64GB | 32GB | 64GB |
| Kit | 1 x 128GB | 2 x 32GB | 2 x 32GB | 2 x 32GB | 2 x 16GB | 2 x 32GB |
| Memory Type | DDR5 | DDR5 | DDR5 | DDR5 | DDR5 | DDR5 |
| Speed Mts | 4800 | 6400 | 6000 | 6400 | 6400 | 6000 |
| Cas Latency | - | CL32 | CL26 | CL32 | CL32 | CL30 |
| Form Factor | DIMM | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Ecc | true | false | false | false | false | false |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Feature | Latency | Capacity | Social Proof | Affordability |
|---|---|---|---|---|---|---|
| Samsung M321RAGA0B20-CWK | 67.7 | 89.5 | 13.8 | 97 | 55.3 | 1.3 |
| Kingston FURY Beast KF564C32BWEAK2-64 Compare | 94.7 | 89.5 | 87.7 | 89.9 | 92.3 | 7.6 |
| G.Skill Trident Z5 Royal Series F5-6000J2636H32GX2-TR5NG Compare | 87.4 | 89.5 | 99.1 | 89.9 | 74.2 | 3.3 |
| Corsair VENGEANCE RGB CMH64GX5M2Y6400C32 Compare | 94.7 | 89.5 | 87.7 | 89.9 | 97.8 | 6.8 |
| Crucial Pro Overclocking CP2K16G64C32U5B Compare | 94.7 | 74.8 | 87.7 | 70.9 | 85.6 | 28 |
| KLEVV CRAS V RGB KD5KGUD80-60A300G-BLACK Compare | 87.4 | 89.5 | 87.7 | 89.9 | 85.6 | 8.3 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
