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 every 6 hours.

$37.10/GB

median $/GB (single sticks, fixed price)

$25.78/GB

cheapest live $/GB

$1650

cheapest single stick, shipped

live listings

Price trend — daily median $/GB, single sticks

Price history builds with every scrape — this chart fills in as DIMMsum keeps watching the market.

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

Listing	Config	Price shipped	$/GB
HYNIX 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY Opens in a new window or tab Pre-Owned	1×64GB	$1650.00	$25.781
MTC40F2046S1RC64BD2 Micron 64GB PC5-51200 DDR5-6400MHz ECC RDIMM 2Rx4 Memory Opens in a new window or tab Pre-Owned	1×64GB	$1769.99	$27.656
64GB Micron DDR5 PC5-6400 2Rx4 RDIMM 288 ECC Reg RAM MTC40F2046S1RC64BD2 6400B Pre-Owned	1×64GB	$1773.18	$27.706
Samsung 64GB DDR5 6400MHz RDimm M321R8GA0EB2 Opens in a new window or tab Brand New	1×64GB	$1895.00	$29.609
MICRON 64GB DDR5 6400 MHZ ECC RDIMM SERVER RAM 2RX4 MTC40F2046S1RC64BH1 Opens in a new window or tab Open Box	1×64GB	$1948.87	$30.451
New Listing M321R8GA0PB2-CCP Samsung 64GB PC5-51200 DDR5-6400MHz ECC 2Rx4 RDIMM Memory Opens in a new window or tab Pre-Owned	1×64GB	$1949.00	$30.453
New Samsung 64GB 2Rx4 PC5-6400B DDR5-51200 ECC RDIMM Memory M321R8GA0PB2-CCP Opens in a new window or tab Brand New	1×64GB	$1980.00	$30.938
HMCG94AHBRA283N Hynix 64GB PC5-51200 DDR5-6400MHz ECC REG Dual Rank RDIMM Memory Opens in a new window or tab Pre-Owned	1×64GB	$1999.00	$31.234
64GB 6400MHz RDIMM DDR5 2Rx4 EC8 RAM Compatible for Supermicro IoT SuperServers Opens in a new window or tab Brand New	1×64GB	$2019.00	$31.547
768GB 12x 64GB RDIMM 6400MHz DDR5 EC8 Memory Compatible for Supermicro X14DBM-AP Opens in a new window or tab Brand New	12×64GB	$24233.00	$31.553
512GB 8x64GB DDR5-6400 RDIMM EC8 RAM for Supermicro X14SBI-TF Server Motherboard Opens in a new window or tab Brand New	8×64GB	$16156.00	$31.555
512GB 8x 64GB DDR5 RDIMM 6400MHz EC8 2Rx8 RAM Compatible for Supermicro X14SBW-F Opens in a new window or tab Brand New	8×64GB	$16156.00	$31.555
HMCG94AHBRA283N Hynix 64GB 2RX4 PC5-51200 DDR5-6400B ECC Dual Rank RDIMM Memory Opens in a new window or tab Pre-Owned	1×64GB	$2075.00	$32.422
DDR5 RDIMM 64GB PC5-6400 2Rx4 ECC Samsung Micron SK Hynix Opens in a new window or tab Open Box	1×64GB	$2080.00	$32.500
V-COLOR 128GB (64GBx2) DDR5 6400MHz CL60 1.1V ECC Registered RDIMM Server/Workst Opens in a new window or tab Brand New	2×64GB	$4159.99	$32.500
SK Hynix 64GB PC5-6400B RDIMM MEMORY HMCG94AHBRA480N Opens in a new window or tab Brand New	1×64GB	$2106.97	$32.921
Hynix 64GB DDR5-6400 PC5-51200 2Rx4 EC8 RDIMM Server Memory RAM HMCG94AHBRA277N Opens in a new window or tab Open Box	1×64GB	$2159.99	$33.750
512GB 8x 64GB DDR5 6400 RDIMM Registered ECC Memory Kingston KSM64R52BD4-64HA Opens in a new window or tab Brand New	8×64GB	$17499.99	$34.180
A-Tech 64GB 2Rx4 PC5-51200R DDR5 6400 MHz ECC REG EC8 RDIMM Server Memory RAM x1 Opens in a new window or tab Brand New	1×64GB	$2194.49	$34.289
64GB DDR5 PC5-51200R RDIMM Replacement for Micron MTC40F2046S1RC64BD2 Memory RAM Opens in a new window or tab Brand New	1×64GB	$2194.49	$34.289
HMCG94AHBRA283N Hynix 64GB PC5-51200 DDR5-6400MHz ECC 2Rx4 RDIMM 1.1V Memory Opens in a new window or tab Pre-Owned	1×64GB	$2199.00	$34.359
HMCG94AHBRA487N Hynix 64GB PC5-51200 DDR5-6400MHz ECC RDIMM Server Memory Opens in a new window or tab Open Box	1×64GB	$2200.00	$34.375
New Listing HMCG94AHBRA481N Hynix 64GB PC5-51200 DDR5-6400MHz ECC REG RDIMM Dual Rank Memory Opens in a new window or tab Pre-Owned	1×64GB	$2249.00	$35.141
64GB PC5-6400 DDR5-51200 EC8 RDIMM Memory Compatible for Cisco UCSX-MRX64G2RE5 Opens in a new window or tab Brand New	1×64GB	$2273.00	$35.516
MTC40F2046S1RC64BH1 MICRON 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY Opens in a new window or tab Pre-Owned	1×64GB	$2299.00	$35.922
MTC40F2046S1RC64BD2 MICRON 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY Opens in a new window or tab Pre-Owned	1×64GB	$2299.00	$35.922
New Listing MTC40F2046S1RC64BH1009 MICRON 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY Opens in a new window or tab Pre-Owned	1×64GB	$2299.00	$35.922
M321R8GA0PB2-CCP SAMSUNG 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY Opens in a new window or tab Pre-Owned	1×64GB	$2299.00	$35.922
M321R8GA0PB1-CCP SAMSUNG 64GB (1X64GB) 2Rx4 PC5-6400B RDIMM Memory Opens in a new window or tab Pre-Owned	1×64GB	$2299.00	$35.922
M321R8GA0EB2-CCP SAMSUNG 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY Opens in a new window or tab Pre-Owned	1×64GB	$2299.00	$35.922
HMCG94CHBRA404N HYNIX 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY Opens in a new window or tab Pre-Owned	1×64GB	$2299.00	$35.922
Hynix 64GB DDR5-6400 PC5-51200 2Rx4 EC8 RDIMM Server Memory RAM HMCG94AHBRA487N Opens in a new window or tab Open Box	1×64GB	$2299.99	$35.937
MTC40F2046S1RC64BD2 Micron 64GB PC5-51200 DDR5-6400MHz ECC 2Rx4 RDIMM Memory Opens in a new window or tab Pre-Owned	1×64GB	$2309.99	$36.094
M321R8GA0EB2-CCP Samsung 64GB PC5-51200 DDR5-6400MHz ECC 2Rx4 RDIMM 1.1V Memory Opens in a new window or tab Pre-Owned	1×64GB	$2319.99	$36.250
HMCG94AHBRA487N Hynix 64GB PC5-51200 DDR5-6400MHz ECC REG RDIMM Dual Rank Memory Opens in a new window or tab Pre-Owned	1×64GB	$2350.00	$36.719
HMCG94AHBRA487N HYNIX 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY Opens in a new window or tab Pre-Owned	1×64GB	$2359.00	$36.859
HMCG94AHBRA480N HYNIX 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY Opens in a new window or tab Pre-Owned	1×64GB	$2359.00	$36.859
HMCG94AHBRA481N HYNIX 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY Opens in a new window or tab Pre-Owned	1×64GB	$2359.00	$36.859
SK Hynix DDR5 EC8 RDIMM 64GB 2Rx4 PC5 6400B HMCG94AHBRA486N AA Opens in a new window or tab New (Other)	1×64GB	$2374.16	$37.096
Sk Hynix 64GB DDR5 PC5-6400 RDIMM Registered ECC RAM (HMCG94CHBRA404N AA) Opens in a new window or tab Brand New	1×64GB	$2399.99	$37.500
PC5-88/64B-MA0-1110 SK hynix DDR5 ECC RDIMM 64GB 6400mhz 2Rx4 HMCG94BDJMA080N Opens in a new window or tab Open Box	1×64GB	$2449.00	$38.266
SK hynix DDR5 ECC RDIMM 64GB 2Rx4 PC5-88/64B-MA0-1110 HMCG94BDJMA080N 6400mhz Opens in a new window or tab Open Box	1×64GB	$2450.00	$38.281
SK hynix DDR5 ECC RDIMM 64GB 6400mhz 2Rx4 PC5-88/64B-MA0-1110 HMCG94BDJMA080N Opens in a new window or tab Open Box	1×64GB	$2450.00	$38.281
SK hynix DDR5 ECC RDIMM 64GB 2Rx4 PC5-88/64B-MA0-1110 HMCG94BDJMA080N 6400mhz Opens in a new window or tab Open Box	1×64GB	$2450.00	$38.281
SK hynix DDR5 ECC RDIMM 64GB 2Rx4 PC5-88/64B-MA0-1110 HMCG94BDJMA080N 6400mhz Opens in a new window or tab Open Box	1×64GB	$2450.00	$38.281
03LC545 LENOVO 64GB (1X64GB) 2RX4 PC5-6400B RDIMM MEMORY 4X77A90966 Opens in a new window or tab Open Box	1×64GB	$2459.00	$38.422
SAMSUNG 64GB DDR5 6400MHz PC5-51200 CL52 2Rx4 ECC RDIMM Open Box	1×64GB	$2467.49	$38.555
HYNIX 64GB DDR5 6400MHz PC5-51200 CL52 2Rx4 ECC RDIMM Opens in a new window or tab Open Box	1×64GB	$2467.49	$38.555
Micron 64GB 6400MHz DDR5 MTC40F2046S1RC64BD2 EC8 RDIMM 2RX4 PC5-6400B-RA1-1211XT Opens in a new window or tab Open Box	1×64GB	$2499.00	$39.047
Micron 64GB 6400MHz DDR5 MTC40F2046S1RC64BD2 EC8 RDIMM 2RX4 PC5-6400B-RA1-1211XT Opens in a new window or tab Open Box	1×64GB	$2499.00	$39.047

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

128GB DDR5-6400 RDIMM · $41.89/GB