Samsung 128GB DDR5-4800 ECC Registered RDIMM 4Rx4 Server Memory
SKU M321RAGA0B20-CWK
128GB DDR5-4800 ECC registered RDIMM for maximum per-socket capacity. Quad-rank server memory.

Quick spec
- Capacity
- 128GB
- Type
- RDIMM (Registered, ECC)
- Speed
- 4800 MT/s (PC5-38400)
- Rank
- 4Rx4 (quad rank)
- Pins
- 288-pin DIMM
Price on application
Configurations vary by server, support tier and volume. We come back same day with pricing and lead time.
Request a quote on this SKUPrice on application
Configurations vary by server, support tier and volume. We come back same day with pricing and lead time.
Request a quote on this SKUOverview
What's included.
This is Samsung's 128GB DDR5-4800 registered ECC module for the highest single-DIMM capacity. The quad-rank 4Rx4 design packs 128GB per slot. Use it to reach 1TB+ per server without filling every channel. Registered ECC corrects single-bit errors across the large array. Pricing is quote-led: UK retail varies widely on this part.
Related
Other DDR5 ECC Server Memory we stock
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