Samsung 128GB DDR5-4800 (M321RAGA0B20-CWK)
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.
अभी किसी विक्रेता की मौजूदा कीमत नहीं है
एक नज़र में
The 30-Second Version
A 128GB ECC monster for servers. Overkill and overpriced for everyone else.
Pros & Cons
खूबियाँ
- Massive 128GB capacity on a single stick 97th
- ECC Registered for rock-solid server stability 90th
- Runs at a cool 1.1V, efficient for dense builds 68th
- Top-tier capacity percentile in our database
कमियाँ
- Latency is one of the worst we've seen
- Price is eye-watering at nearly $5,000
- Server-only, completely useless for desktops
- Can't mix with EC4 or other ECC types
मालिकों की राय
The Word on the Street
प्रमाण
Performance
The 4800 MT/s speed is solid but not a chart-topper, landing right in the middle of the pack for DDR5. What surprised us is the sheer density. A single 128GB module at 97th percentile for capacity is a big deal. You can hit a terabyte of RAM with just eight slots. The latency is a weak spot, sitting near the bottom of our database, but that's the trade-off you make for quad-rank registered memory. Servers care about stability and capacity more than shaving nanoseconds.
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
The Kingston FURY Beast and G.Skill Trident Z5 Royal are faster and cheaper, but they're desktop memory with no ECC and far less capacity per stick. The Corsair Vengeance and Crucial Pro kits are also consumer parts. None of them can touch this Samsung module for server density. If you need registered ECC and 128GB in one slot, this is basically the only game in town among these competitors.
| Spec | Samsung 128GB DDR5 | Kingston FURY Beast KF564C32BWEAK2-64 | G.Skill Trident Z5 Royal Series F5-6000J2636H32GX2-TR5NG | Corsair VENGEANCE RGB CMH64GX5M2Y6400C32 | Crucial Pro Overclocking CP2K16G64C32U5B | ADATA Lancer Blade RGB AX5U6000C3016G-DTLABRBK |
|---|---|---|---|---|---|---|
| Capacity | 128GB | 64GB | 64GB | 64GB | 32GB | 32GB |
| Kit | 1 x 128GB | 2 x 32GB | 2 x 32GB | 2 x 32GB | 2 x 16GB | 2 x 16GB |
| 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 |
| उत्पाद | Speed | Feature | Latency | Capacity | सामाजिक प्रमाण | Affordability |
|---|---|---|---|---|---|---|
| Samsung 128GB DDR5 | 67.9 | 89.7 | 13.4 | 97 | 55.4 | 1.4 |
| Kingston FURY Beast KF564C32BWEAK2-64 Compare | 94.8 | 89.7 | 87.7 | 89.9 | 92.3 | 7.7 |
| G.Skill Trident Z5 Royal Series F5-6000J2636H32GX2-TR5NG Compare | 87.7 | 89.7 | 99 | 89.9 | 74.2 | 3.2 |
| Corsair VENGEANCE RGB CMH64GX5M2Y6400C32 Compare | 94.8 | 89.7 | 87.7 | 89.9 | 97.8 | 6.9 |
| Crucial Pro Overclocking CP2K16G64C32U5B Compare | 94.8 | 75 | 87.7 | 71.1 | 85.6 | 27.8 |
| ADATA Lancer Blade RGB AX5U6000C3016G-DTLABRBK Compare | 87.7 | 89.7 | 87.7 | 71.1 | 97.8 | 15.8 |
कीमत
Value & Pricing
At roughly $4,990 USD, this is not a casual purchase. But for enterprise buyers who need maximum memory density per slot, it's the price of doing business. You're paying for the 128GB capacity and the validation that comes with Samsung server RAM. If you don't need that much per module, buy smaller sticks and save a fortune.
और पढ़ें
Overview
This is a server workhorse, not a toy. The Samsung M321RAGA0B20-CWK is a single 128GB stick of registered ECC DDR5, and it's built for one thing: cramming massive amounts of reliable memory into enterprise boxes. If you're building a virtualization host or a database server, this is the kind of module that makes your life easier. Just don't even think about putting it in a gaming PC.
Common Questions
Q: Can I use this in my desktop PC?
No. This is registered ECC server memory. Your desktop motherboard won't even POST with it. Get standard DDR5 UDIMMs instead.
Q: Can I mix this with other ECC modules?
Only if they're the same EC8 (10x4) type. Mixing with EC4 or other ECC types will cause problems. Match the exact part number when possible.
Q: Is 4800 MT/s fast enough for a server?
For most server workloads, yes. Capacity and stability matter more than raw speed. If you need faster memory, look at 5600 MT/s RDIMMs, but expect to pay even more.
Who Should Skip This
If you're building a gaming rig or a workstation for creative work, this isn't for you. Go grab a 64GB kit of Kingston FURY Beast or G.Skill Trident Z5 instead. You'll get better speed, lower latency, and save thousands of dollars.
Verdict
Buy this if you're speccing out a serious server and need maximum RAM per slot. It's expensive and the latency isn't great, but the capacity and ECC reliability are exactly what enterprise workloads demand. For anything else, look elsewhere.
