P64986-B21 HPE 64GB DDR5-6400 ECC RDIMM Compatible Server Memory

P64986-B21 HPE 64GB DDR5-6400 ECC RDIMM 2Rx4 1.1V Compatible Memory

64GBDDR5-6400RDIMM2Rx41.1V

SKU: P64986-B21

$ 2,500

≈ €2150.00

Excl. VAT & shipping

Brand New • 1 Year

🟢 192 pcs available · Lead time: 3-4 Days · Updated 25 May 2026
- +

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Prices and availability may change and are confirmed on quotation.

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
Specifications
Compatible Systems
Alternatives

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:
    MTC40F2046S1RC64BD2T Micron 64GB DDR5-6400 ECC RDIMM 2Rx4 1.1V Memory.
  • Fully compatible
    Fully compatible with servers requiring P64986-B21.

P64986-B21 Specifications

Compatible OEM

HPE
Part Number

P64986-B21
Memory Size

64GB
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.

PicturePart NumberBrandSizeSpeedForm FactorShips InStockPrice
KSM64R52BD4-64MD Kingston 64GB DDR5-6400 ECC RDIMM Server Memory
KSM64R52BD4-64MD
Kingston64GBDDR5-6400RDIMM
🟢2–3D
18

$ 2,725

Quote
HMCG94AHBRA SK Hynix 64GB DDR5-6400 ECC RDIMM Server Memory
HMCG94AHBRA
SK Hynix64GBDDR5-6400RDIMM
🟢4–5D
100+

$ 2,717

Quote
M321R8GA0EB2-CCP Samsung 64GB DDR5-6400 ECC RDIMM Server Memory
M321R8GA0EB2-CCP
Samsung64GBDDR5-6400RDIMM
🟢3–4D
170

$ 2,609

Quote
M321R8GA0PB2-CCP Samsung 64GB DDR5-6400 ECC RDIMM Server Memory
M321R8GA0PB2-CCP
Samsung64GBDDR5-6400RDIMM
🟢3–4D
10

$ 2,609

Quote
HMCG94AHBRA278N SK Hynix 64GB DDR5-6400 ECC RDIMM Server Memory
HMCG94AHBRA278N
SK Hynix64GBDDR5-6400RDIMM
🟢3–4D
24

$ 2,609

Quote
HMCG94AHBRA280N SK Hynix 64GB DDR5-6400 ECC RDIMM Server Memory
HMCG94AHBRA280N
SK Hynix64GBDDR5-6400RDIMM
🟢3–4D
100

$ 2,609

Quote
HMCG94BHBRA276N SK Hynix 64GB DDR5-6400 ECC RDIMM Server Memory
HMCG94BHBRA276N
SK Hynix64GBDDR5-6400RDIMM
🟢4–5D
100+

$ 2,554

Quote
MTC40F2046S1RC64BD2 Micron 64GB DDR5-6400 ECC RDIMM Server Memory
MTC40F2046S1RC64BD2
Micron64GBDDR5-6400RDIMM
🟢3–4D
401

$ 2,509

Quote
MTC40F2046S1RC64BD2T Micron 64GB DDR5-6400 ECC RDIMM Server Memory
MTC40F2046S1RC64BD2T
Micron64GBDDR5-6400RDIMM
🟢3–4D
192

$ 2,500

Quote
HMCG94CHBRA SK Hynix 64GB DDR5-6400 ECC RDIMM Server Memory
HMCG94CHBRA
SK Hynix64GBDDR5-6400RDIMM
🟢4–5D
100+

$ 2,500

Quote
MTC40F2046S1RC64BD2R Micron 64GB DDR5-6400 ECC RDIMM Server Memory
MTC40F2046S1RC64BD2R
Micron64GBDDR5-6400RDIMM
🟢2–3D
176

$ 2,337

Quote
MDRR644QDBC2-3L000 Samsung 64GB DDR5-6400 ECC RDIMM Server Memory
MDRR644QDBC2-3L000
Samsung64GBDDR5-6400RDIMM
🟢2–3D
3000

$ 2,053

Quote
MTC40F2046S1RC64BR Micron 64GB DDR5-6400 ECC RDIMM Server Memory
MTC40F2046S1RC64BR
Micron64GBDDR5-6400RDIMM
⚪Conf.
Quote
MTC40F2046S1RC64BT Micron 64GB DDR5-6400 ECC RDIMM Server Memory
MTC40F2046S1RC64BT
Micron64GBDDR5-6400RDIMM
⚪Conf.
Quote
HMCG94BHBRA SK Hynix 64GB DDR5-6400 ECC RDIMM Server Memory
HMCG94BHBRA
SK Hynix64GBDDR5-6400RDIMM
⚪Conf.
Quote

Need help choosing between available part numbers? Contact us for pricing and availability.

Order Summary