64GB DDR4-2666 RDIMM — used server RAM prices

Registered ECC memory (RDIMM) rated at 2666 MT/s — sellers also list this speed as PC4-21300 or 2666V. 64GB sticks fit DDR4 server platforms (Xeon E5 v3/v4, Xeon Scalable gen 1–2, EPYC Naples/Rome). 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.

$8.64/GB

median $/GB (single sticks, fixed price)

$3.16/GB

cheapest live $/GB

$205

cheapest single stick, shipped

116

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
SK Hynix HMAA8GL7CPR4N-VK T3 128GB (2x64GB) DDR4 PC4-2666V ECC Registered RDIMM Opens in a new window or tab Brand New	2×64GB	$404.89	$3.163
M393A8K40B22-CWD Samsung 64GB 2S2RX4 PC4-2666V ECC RDIMM Server Memory RAM Opens in a new window or tab Pre-Owned	1×64GB	$205.00	$3.203
NEW Micron 64GB DDR4-2666 PC4-21300 ECC Registered RDIMM - MTA36ASF4G72PZ-2G6D1 Opens in a new window or tab Brand New	1×64GB	$222.99	$3.484
SK hynix 64GB DDR4 RDIMM ECC Registered PC4-2666V 288-Pin HMAA8GL7AMR4N-VK Opens in a new window or tab Pre-Owned	1×64GB	$255.72	$3.996
256GB - 4x 64GB 2SRx4 Samsung DDR4 2666 RDIMM \| M393A8K40B22-CWD Opens in a new window or tab Refurbished	4×64GB	$1028.19	$4.016
MTA72ASS8G72PSZ-2S6G1 Micron 64GB 2S2RX4 PC4-2666V RDIMM MEMORY Opens in a new window or tab Pre-Owned	1×64GB	$259.00	$4.047
OWC 32GB 64GB DDR4 2666MHz ECC Registered RDIMM 288pin Memory RAM Opens in a new window or tab Brand New	1×64GB	$269.99	$4.219
64GB 2SRx4 Samsung DDR4 2666 RDIMM \| M393A8K40B22-CWD Opens in a new window or tab Refurbished	1×64GB	$273.34	$4.271
SK Hynix 64GB DDR4 2666 ECC RDIMM Server RAM PC4-2666V HMAA8GL7CPR4N Opens in a new window or tab Brand New	1×64GB	$279.99	$4.375
Samsung 64GB PC4-2666V-R 2S2Rx4 DDR4 ECC REG RDIMM - M393A8K40B22-CWD6Q Opens in a new window or tab Pre-Owned	1×64GB	$299.99	$4.687
IBM 78P4199 128GB (2x64gb sticks) DDR4 2666MHZ RDIMM MEMORY P9 Opens in a new window or tab Pre-Owned	2×64GB	$605.83	$4.733
A-Tech 512GB 8x 64GB 2S2Rx4 4Rx4 PC4-21300 2666 ECC REG RDIMM Server Memory RAM Opens in a new window or tab Brand New	8×64GB	$2452.78	$4.791
Hynix 64GB 2S2Rx4 PC4-2666 RDIMM DDR4-21300 ECC REG Registered Server Memory RAM Opens in a new window or tab Open Box	1×64GB	$306.60	$4.791
Samsung 64GB 2S2Rx4 PC4-2666V RDIMM DDR4-21300 ECC Registered Server Memory RAM Opens in a new window or tab Open Box	1×64GB	$306.60	$4.791
A-Tech 64GB 2S2Rx4 (4Rx4) PC4-21300 DDR4 2666 ECC REG RDIMM Server Memory RAM Opens in a new window or tab Brand New	1×64GB	$306.60	$4.791
A-Tech 128GB 2x 64GB 2S2Rx4 4Rx4 PC4-21300 2666 ECC REG RDIMM Server Memory RAM Opens in a new window or tab Brand New	2×64GB	$613.20	$4.791
A-Tech 256GB 4x 64GB 2S2Rx4 4Rx4 PC4-21300 2666 ECC REG RDIMM Server Memory RAM Opens in a new window or tab Brand New	4×64GB	$1226.38	$4.791
SK Hynix 64GB DDR4 PC4-2666V ECC Registered Server RAM RDIMM Memory Module Opens in a new window or tab Pre-Owned	1×64GB	$312.29	$4.880
Cisco 64GB DDR4-2666 REG RDIMM UCS-MR-X64G4RS-H 15-105083-01 Server Memory RAM Opens in a new window or tab Pre-Owned	1×64GB	$319.37	$4.990
64GB DDR4 PC4-21300 ECC RDIMM (Replacement for Cisco HX-MR-X64G4RS-H) Memory RAM Opens in a new window or tab Brand New	1×64GB	$319.37	$4.990
64GB DDR4 2666MHz PC4-21300R RDIMM Replacement for IBM 78P4199 Server Memory RAM Opens in a new window or tab Brand New	1×64GB	$319.37	$4.990
64GB DDR4 PC4-21300R RDIMM (Replacement for Samsung M393A8K40B22-CWD) Memory RAM Opens in a new window or tab Brand New	1×64GB	$319.37	$4.990
UCS-MR-X64G4RS-H Cisco 64GB PC4-21300 DDR4-2666MHz ECC 2Rx4 RDIMM 1.2V Memory Opens in a new window or tab Pre-Owned	1×64GB	$319.99	$5.000
64GB 4Rx4 PC4-2666 RDIMM Supermicro 5049A-T Memory RAM Opens in a new window or tab Brand New	1×64GB	$332.16	$5.190
64GB 2S2Rx4 (4Rx4) PC4-2666 RDIMM Supermicro 220GQ-TNAR+ 620TP-HC8TR Memory RAM Opens in a new window or tab Brand New	1×64GB	$332.16	$5.190
256GB 4x 64GB PC4-2666 RDIMM ASRock Rack ROMED8-2T Memory RAM Opens in a new window or tab Brand New	4×64GB	$1328.59	$5.190
512GB 8x 64GB PC4-2666 RDIMM Supermicro 5049A-T Memory RAM Opens in a new window or tab Brand New	8×64GB	$2657.19	$5.190
64GB 2S2Rx4 (4Rx4) PC4-2666 RDIMM Supermicro X12SDV-10C-SPT4F Memory RAM Opens in a new window or tab Brand New	1×64GB	$332.16	$5.190
512GB 8x 64GB PC4-2666 RDIMM ASRock Rack ROMED8-2T Memory RAM Opens in a new window or tab Brand New	8×64GB	$2657.19	$5.190
512GB 8x 64GB PC4-2666 RDIMM Supermicro 4028GR-TRT2 F628R3-FC0+ Memory RAM Brand New	8×64GB	$2657.19	$5.190
128GB 2x 64GB PC4-2666 RDIMM ASRock Rack ROMED8-2T Memory RAM Opens in a new window or tab Brand New	2×64GB	$664.28	$5.190
128GB 2x 64GB PC4-2666 RDIMM Supermicro 5049A-T Memory RAM Opens in a new window or tab Brand New	2×64GB	$664.28	$5.190
256GB 4x 64GB PC4-2666 RDIMM Supermicro 5049A-T Memory RAM Opens in a new window or tab Brand New	4×64GB	$1328.59	$5.190
Samsung 64GB 2Rx4 PC4-2666 ECC RDIMM DDR4 RAM M393A8G40MB1 like M393A8G40MB2 Opens in a new window or tab Pre-Owned	1×64GB	$334.00	$5.219
Kingston 64GB DDR4 2666V ECC RDIMM Server RAM Opens in a new window or tab Pre-Owned	1×64GB	$355.00	$5.547
SK hynix 64GB PC4 2666V HMAA8GL7CPR4N-VK 4DRx4 DDR4 Server RDIMM Dell HP Cisco Opens in a new window or tab Pre-Owned	1×64GB	$365.00	$5.703
Samsung 64GB DDR4-2666 ECC RDIMM 4Rx4 PC4-2666V Server RAM M386A8K40BM2-CTD6Q Opens in a new window or tab Pre-Owned	1×64GB	$379.57	$5.931
64gb Samsung 2666 2S2Rx4 ECC RDIMM M393A8K40B22-CWD6Y (Cisco: UCS-MR-X64G4RS) Opens in a new window or tab New (Other)	1×64GB	$395.89	$6.186
Kingston 64GB DDR4 2666MHz 2Rx4 ECC Registered RDIMM Server RAM KSM26RD4/64MER Opens in a new window or tab Refurbished	1×64GB	$399.95	$6.249
IBM 78P4199 64GB DDR4 2666MHZ RDIMM MEMORY P9 Opens in a new window or tab Pre-Owned	1×64GB	$400.00	$6.250
256GB 4x64GB DDR4-2666Mhz RDIMM Memory 3DS TSV Asrock Rack EPYCD8 Epyc 7451 CPU Opens in a new window or tab Brand New	4×64GB	$1659.00	$6.480
New Seal 64GB PC4-2666 RDIMM ECC Server RAM P19044-B21 -AM-03 ADDON Memory Opens in a new window or tab Brand New	1×64GB	$415.00	$6.484
A9810569-MB 64GB DDR4 2666MHz RDIMM RAM for Dell PowerEdge R440 R540 R6415 R7415 Opens in a new window or tab Brand New	1×64GB	$417.00	$6.516
256GB (4x64GB) DDR4-2666 TSV RDIMM Memory iMacPro 27-inch Late December 2017 Opens in a new window or tab Brand New	4×64GB	$1713.00	$6.691
Samsung M393A8G40MB2-CTD 64GB DDR4-2666 2Rx4 ECC RDIMM Memory Opens in a new window or tab Brand New	1×64GB	$429.99	$6.719
64GB DDR4-2666Mhz RDIMM Memory 3DS /TSV for Gigabyte MZ32-AR0 AMD EPYC 7001/7002 Opens in a new window or tab Brand New	1×64GB	$442.00	$6.906
Micron MTA72ASS8G72LZ 64GB 4DRx4 PC4-2666V-LE2 ECC Server RAM RDIMM Memory Opens in a new window or tab Pre-Owned	1×64GB	$446.24	$6.973
HX-MR-X64G4RS-H-MB 64GB DDR4-2666MHz TSV-RDIMM Memory UCS B480 M5 Blade Server Opens in a new window or tab Brand New	1×64GB	$468.00	$7.313
TA-MR-X64G4RS-H-MB 64GB DDR4 2666MHz TSV-RDIMM RAM for UCS C240 M5 Rack Server Opens in a new window or tab Brand New	1×64GB	$468.00	$7.313
UCS-MR-X64G4RS-H 64GB DDR4-2666MHz TSV-RDIMM x4 Memory UCS C220 C240 B200 M5 Opens in a new window or tab Brand New	1×64GB	$468.00	$7.313

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

64GB DDR4-2666 RDIMM — used server RAM prices

Price trend — daily median $/GB, single sticks

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

64GB DDR4 RDIMM at other speeds

Other DDR4-2666 RDIMM capacities