64GB RDIMM & LRDIMM deals — big sticks, fewer slots

64GB sticks are how you reach half a terabyte without exotic hardware. In DDR4 they come both registered (RDIMM) and load-reduced (LRDIMM) — mind that the two can't mix in the same system — and the LRDIMMs are often the cheaper per GB of the pair.

10 cheapest live listings (single sticks, fixed price, parts-only excluded)

eBay affiliate disclosure: The listing links below lead to eBay. DIMMsum may earn a commission if you make a purchase.

Prices include shipping, refreshed from live eBay listings twice daily. Compare everything at once on the live $/GB scatter.

Price + history pages for every tracked spec

• 64GB DDR4-2400 LRDIMM · low end $4.89/GB
• 64GB DDR4-2666 LRDIMM · low end $5.47/GB
• 64GB DDR4-2666 RDIMM · low end $6.25/GB
• 64GB DDR4-2933 LRDIMM · low end $6.56/GB
• 64GB DDR4-2933 RDIMM · low end $8.05/GB
• 64GB DDR4-3200 LRDIMM · low end $10.97/GB
• 64GB DDR4-3200 RDIMM · low end $14.62/GB
• 64GB DDR5-4800 RDIMM · low end $35.31/GB
• 64GB DDR5-5600 RDIMM · low end $39.06/GB
• 64GB DDR5-6400 RDIMM · low end $42.97/GB