🥟 DIMMsum

64GB DDR5-6400 RDIMM — used server RAM prices

Registered ECC memory (RDIMM) rated at 6400 MT/s — sellers also list this speed as PC5-51200. 64GB sticks fit current DDR5 server platforms (Xeon Scalable Sapphire Rapids and later, EPYC Genoa and later). Prices below include shipping; the median comes from single-stick, fixed-price listings only, so multi-stick lots and auction bids can't skew it. Refreshed from live eBay listings twice daily.

$40.62/GB
median $/GB (single sticks, fixed price)
$31.34/GB
cheapest live $/GB
$2005
cheapest single stick, shipped
60
live listings

Price trend — median $/GB, single sticks: asking prices vs real sold prices

asking — daily median of live listings$40.62$23.42Jul 4 asking: $36.859/GB · 385 listingsJul 5 asking: $36.859/GB · 256 listingsJul 6 asking: $36.859/GB · 253 listingsJul 7 asking: $36.859/GB · 123 listingsJul 8 asking: $36.859/GB · 121 listingsJul 10 asking: $38.281/GB · 99 listingsJul 11 asking: $38.352/GB · 100 listingsJul 12 asking: $38.352/GB · 104 listingsJul 13 asking: $38.422/GB · 103 listingsJul 14 asking: $38.422/GB · 101 listingsJul 15 asking: $38.422/GB · 101 listingsJul 16 asking: $38.422/GB · 108 listingsJul 17 asking: $38.977/GB · 106 listingsJul 18 asking: $39.047/GB · 106 listingsJul 19 asking: $39.047/GB · 106 listingsJul 20 asking: $39.047/GB · 106 listingsJul 21 asking: $39.047/GB · 107 listingsJul 22 asking: $40.594/GB · 109 listingsJul 29 asking: $40.625/GB · 57 listingsJul 30 asking: $40.625/GB · 111 listingsJul 31 asking: $40.625/GB · 108 listingsAug 1 asking: $40.625/GB · 106 listingsAug 2 asking: $40.625/GB · 106 listingsAug 3 asking: $40.625/GB · 104 listingsAug 4 asking: $40.625/GB · 103 listingsAug 5 asking: $40.594/GB · 106 listingsAug 6 asking: $40.594/GB · 105 listingsAug 7 asking: $40.609/GB · 100 listingsAug 8 asking: $40.625/GB · 49 listingsAug 9 asking: $40.594/GB · 51 listingsAug 10 asking: $40.609/GB · 50 listingsAug 11 asking: $40.594/GB · 50 listingsAug 12 asking: $40.594/GB · 50 listingsAug 13 asking: $40.609/GB · 50 listingsAug 14 asking: $40.594/GB · 51 listingsAug 16 asking: $40.625/GB · 47 listingsAug 17 asking: $40.625/GB · 46 listingsAug 18 asking: $40.625/GB · 45 listingsask $40.62Jul 4Aug 18sold — monthly median of completed sales$40.62$23.42Apr 2026 sold: $28.094/GB · 9 salesMay 2026 sold: $23.422/GB · 24 salesJun 2026 sold: $26.422/GB · 18 salesJul 2026 sold: $25.781/GB · 15 salessold $25.78Apr 2026Jul 2026

50 cheapest live listings (fixed price, parts-only excluded)

ListingConfigPrice shipped$/GB
Samsung M321R8GA0EB2-CCPKC 64GB DDR5-6400Mbps 2RX4 ECC RDIMM Memory ref
Brand New
1×64GB $2005.48 $31.336
Trusta ADATA 64GB DDR5-6400 ECC RDIMM 2Rx8 PC5-6400B Server RAM Lifetime Wty
Open Box
1×64GB $2029.00 $31.703
64GB 6400MHz RDIMM DDR5 2Rx4 EC8 RAM Compatible for Supermicro IoT SuperServers
Brand New
1×64GB $2064.00 $32.250
256GB 4x64GB DDR5 6400MHz RDIMM RAM Memory Compatible ASUS Pro WS WRX90E-SAGE
Brand New
4×64GB $8258.00 $32.258
768GB 12x 64GB RDIMM 6400MHz DDR5 EC8 Memory Compatible for Supermicro X14DBM-AP
Brand New
12×64GB $24779.00 $32.264
512GB 8x64GB DDR5-6400 RDIMM EC8 RAM for Supermicro X14SBI-TF Server Motherboard
Brand New
8×64GB $16520.00 $32.266
512GB 8x 64GB DDR5 RDIMM 6400MHz EC8 2Rx8 RAM Compatible for Supermicro X14SBW-F
Brand New
8×64GB $16520.00 $32.266
HMCG94AHBRA487N Hynix 64GB PC5-51200 DDR5-6400MHz ECC RDIMM Server Memory
Open Box
1×64GB $2200.00 $34.375
512GB 8x 64GB DDR5 6400 RDIMM Registered ECC Memory Kingston KSM64R52BD4-64HA
Brand New
8×64GB $17999.99 $35.156
V-COLOR 128GB (64GBx2) DDR5 6400MHz CL60 1.1V ECC Registered RDIMM Server/Workst
Brand New
2×64GB $4614.49 $36.051
HMCG94AHBRA487N Hynix 64GB PC5-51200 DDR5-6400MHz ECC REG RDIMM Dual Rank Memory
Pre-Owned
1×64GB $2349.00 $36.703
64GB PC5-6400 DDR5-51200 EC8 RDIMM Memory Compatible for Cisco UCSX-MRX64G2RE5
Brand New
1×64GB $2375.00 $37.109
HMCG94AHBRA480N HYNIX 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY
Pre-Owned
1×64GB $2399.00 $37.484
M321R8GA0EB2-CCP SAMSUNG 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY
Pre-Owned
1×64GB $2399.00 $37.484
MTC40F2046S1RC64BD2 Micron 64GB PC5-51200 DDR5-6400MHz ECC RDIMM 2Rx4 Memory
Pre-Owned
1×64GB $2399.00 $37.484
M321R8GA0PB1-CCP SAMSUNG 64GB (1X64GB) 2Rx4 PC5-6400B RDIMM Memory
Pre-Owned
1×64GB $2399.00 $37.484
SK Hynix DDR5 EC8 RDIMM 64GB 2Rx4 PC5 6400B HMCG94AHBRA486N AA
New (Other)
1×64GB $2423.42 $37.866
SK hynix DDR5 ECC RDIMM 64GB 6400mhz 2Rx4 PC5-88/64B-MA0-1110 HMCG94BDJMA080N
Open Box
1×64GB $2450.00 $38.281
HMCG94AHBRA481N Hynix 64GB PC5-51200 DDR5-6400MHz ECC REG RDIMM Dual Rank Memory
Pre-Owned
1×64GB $2499.00 $39.047
SK hynix 64GB DDR5-6400 PC5-51200 ECC RDIMM 2Rx4 Server RAM HMCG88MEBRA131N
Brand New
1×64GB $2500.00 $39.063
Samsung M321R8GA0EB2-CCPKC 64GB DDR5-6400Mbps 2RX4 ECC RDIMM Memory
Open Box
1×64GB $2505.97 $39.156
64GB DDR5 PC5-51200R RDIMM Replacement for Micron MTC40F2046S1RC64BD2 Memory RAM
Brand New
1×64GB $2520.16 $39.378
A-Tech 64GB 2Rx4 PC5-51200R DDR5 6400 MHz ECC REG EC8 RDIMM Server Memory RAM x1
Brand New
1×64GB $2520.16 $39.378
MTC40F2046S1RC64BD2 Micron 64GB PC5-51200 DDR5-6400MHz ECC 2Rx4 RDIMM Memory
Pre-Owned
1×64GB $2549.99 $39.844
Intel 6741P + 8x Micron 64GB DDR5 6400 RDIMM + ASRock GNRD8-2L2T
Pre-Owned
8×64GB $20510.19 $40.059
HMCG94AHBRA283N Hynix 64GB PC5-51200 DDR5-6400MHz ECC REG Dual Rank RDIMM Memory
Pre-Owned
1×64GB $2590.00 $40.469
Samsung 64GB 6400MHz DDR5 RAM RDIMM M321R8GA0EB2-CCP 2R x 4 Server Memory
Open Box
1×64GB $2598.00 $40.594
Samsung 64GB 6400MHz DDR5 RAM 2R x 4 RDIMM M321R8GA0EB2-CCP Memory for Server
Open Box
1×64GB $2598.00 $40.594
M321R8GA0PB2-CCP Samsung 64GB PC5-51200 DDR5-6400MHz ECC 2Rx4 RDIMM Memory
Pre-Owned
1×64GB $2599.00 $40.609
SK hynix HMCG94AHBRA480N 64GB DDR5 6400MHz PC5-51200 CL52 2Rx4 ECC RDIMM
Open Box
1×64GB $2599.99 $40.625
Samsung M321R8GA0PB2-CCPKC 64GB DDR5 6400MHz PC5-51200 CL52 2Rx4 ECC RDIMM
Open Box
1×64GB $2599.99 $40.625
SK hynix HMCG94AHBRA487N 64GB DDR5 6400MHz PC5-51200 CL52 2Rx4 ECC RDIMM
Open Box
1×64GB $2599.99 $40.625
Samsung M321R8GA0EB2-CCPWF 64GB DDR5 6400MHz PC5-51200 CL52 2Rx4 ECC RDIMM
Open Box
1×64GB $2599.99 $40.625
HMCG94AHBRA283N Hynix 64GB PC5-51200 DDR5-6400MHz ECC 2Rx4 RDIMM 1.1V Memory
Pre-Owned
1×64GB $2624.99 $41.015
03LC544 LENOVO 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY 4X77A90966
Brand New
1×64GB $2659.00 $41.547
768GB 12x 64GB RDIMM 6400MHz DDR5 EC8 Memory Compatible for Supermicro X14DBM-AP
Brand New
12×64GB $31919.32 $41.562
512GB 8x 64GB DDR5 RDIMM 6400MHz EC8 2Rx8 RAM Compatible for Supermicro X14SBW-F
Brand New
8×64GB $21348.97 $41.697
256GB 4x64GB DDR5 6400MHz RDIMM RAM Memory Compatible ASUS Pro WS WRX90E-SAGE
Brand New
4×64GB $10775.15 $42.090
03LC544 LENOVO 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY 4X77A90966
Open Box
1×64GB $2750.00 $42.969
64GB EC8 RDIMM PC5-6400 DDR5-51200 Memory Compatible w/ HPE ProLiant DL365 Gen11
Brand New
1×64GB $2858.00 $44.656
64GB RDIMM PC5-51200 DDR5-6400 RAM KTH-PL564D4-64G Compatible Replacement Memory
Brand New
1×64GB $2998.95 $46.859
SK hynix DDR5 ECC RDIMM 64GB 2Rx4 PC5-88/64B-MA0-1110 HMCG94BDJMA080N 6400mhz
Open Box
1×64GB $3199.00 $49.984
SK hynix DDR5 ECC RDIMM 64GB 2Rx4 PC5-88/64B-MA0-1110 HMCG94BDJMA080N 6400mhz
Open Box
1×64GB $3199.00 $49.984
Samsung 64GB DDR5 Server RDIMM 6400Mbps M321R8GA0EB2-CCP 2Rx4 DDR5
Open Box
1×64GB $3199.00 $49.984
Micron 64GB 6400MHz DDR5 MTC40F2046S1RC64BD2 EC8 RDIMM 2RX4 PC5-6400B-RA1-1211XT
Open Box
1×64GB $3199.00 $49.984
SK hynix DDR5 ECC RDIMM 64GB 2Rx4 PC5-88/64B-MA0-1110 HMCG94BDJMA080N 6400mhz
Open Box
1×64GB $3199.00 $49.984
Micron 64GB 6400MHz DDR5 MTC40F2046S1RC64BD2 EC8 RDIMM 2RX4 PC5-6400B-RA1-1211XT
Open Box
1×64GB $3199.00 $49.984
Micron 64GB 6400MHz DDR5 MTC40F2046S1RC64BD2 EC8 RDIMM 2RX4 PC5-6400B-RA1-1211XT
Open Box
1×64GB $3199.00 $49.984
Samsung 64GB DDR5 Server RDIMM 6400Mbps M321R8GA0EB2-CCP 2Rx4 DDR5
Open Box
1×64GB $3199.00 $49.984
Samsung 64GB DDR5 Server RDIMM 6400Mbps M321R8GA0EB2-CCP 2Rx4 DDR5
Open Box
1×64GB $3199.00 $49.984

Compare interactively on the live $/GB scatter — median market lines, Pareto frontier, and every spec side by side.

64GB DDR5 RDIMM at other speeds

Other DDR5-6400 RDIMM capacities

📬 Monthly used-RAM market report — median sold prices by spec, movers, and the best current deals. One email a month, nothing else.