P64988-B21 HPE 128GB DDR5-6400 ECC RDIMM 2Rx4 1.1V Compatible Memory
128GBDDR5-6400RDIMM2Rx41.1V
SKU: P64988-B21
$ 4,728
≈ €4237.00
🟢 1000 pcs available · Lead time: 4-5 Days · Updated 15 Oct 2026
More stock for this part
QuantityPriceShips InUpdated
1000 pcs$4891Lead time 2-3 daysUpdated 19 Oct 2026
8 pcsRequestLead time 2-3 daysUpdated 19 Oct 2026
50+ pcs$5376Lead time 1-2 daysUpdated 19 Oct 2026
154 pcsRequestLead time 3-4 daysUpdated 19 Oct 2026
50+ pcs$5054Lead time 4-5 daysUpdated 16 Oct 2026
95 pcs$5054Lead time 2-3 daysUpdated 15 Oct 2026
95 pcs$5054Lead time 3-4 daysUpdated 14 Oct 2026
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Tier-1 Memory
Samsung, Micron & SK Hynix
Server Compatibility
Dell, HPE, Lenovo, Cisco and more
Volume Pricing
Fast response for B2B quantity requests
Technical Support
Compatibility and sourcing assistance
Overview
- HPE does not manufacture memory.
Their systems are qualified using modules from global tier-one manufacturers such as Samsung, Micron, and SK Hynix. - This module is JEDEC-compliant and spec-matched for HPE platforms
Ensuring reliable compatibility, performance, and long-term stability. - Supplied as:
M321RAJA0MB2-CCP Samsung 128GB DDR5-6400 ECC RDIMM 2Rx4 1.1V Memory. - Fully compatible
Fully compatible with servers requiring P64988-B21.
P64988-B21 Specifications
| Compatible OEM | HPE |
|---|---|
| Part Number | P64988-B21 |
| Memory Size | 128GB |
| Memory Speed | DDR5-6400 |
| Memory Technology | DDR5 |
| Speed | 6400 |
| Rank and Organization | 2Rx4 |
| Rank Type | Dual Rank |
| Chip Organization | x4 |
| Error Correction (ECC) | ECC |
| CAS Latency | CL52 |
| DIMM Type | Registered |
| Form Factor | RDIMM |
| Voltage | 1.1V |
| Pins | 288 |
| Height | STD |
| JEDEC Specification | PC5-51200R |
| Temperature | 0°C to 95°C |
Compatible Systems
Same-Spec Alternatives
Alternative part numbers with matching key specifications.
| Picture | Part Number | Brand | Size | Speed | Form Factor | Ships In | Stock | Price | |
|---|---|---|---|---|---|---|---|---|---|
| Micron | 128GB | DDR5-6400 | RDIMM | 100 | |||||
| SK Hynix | 128GB | DDR5-6400 | RDIMM | 50+ | |||||
| SK Hynix | 128GB | DDR5-6400 | RDIMM | 150 | |||||
| Micron | 128GB | DDR5-6400 | RDIMM | 50+ | |||||
| Samsung | 128GB | DDR5-6400 | RDIMM | 1000 | |||||
| SK Hynix | 128GB | DDR5-6400 | RDIMM | 2000 | |||||
| Samsung | 128GB | DDR5-6400 | RDIMM | ||||||
| SK Hynix | 128GB | DDR5-6400 | RDIMM | 4 | |||||
| Micron | 128GB | DDR5-6400 | RDIMM | 192 |
Need help choosing between available part numbers? Contact us for pricing and availability.