May we count your visit with Google Analytics? It uses cookies and sends visit data to Google. You can change this any time under Cookie choices. Privacy

componentprices
Search parts

Search by model, maker, socket, speed, capacity or wattage.

Try

Search needs JavaScript. Every category is linked in the menu.

Checked on
PricesMenu

Prices here were checked on . Newegg links show the current price.

DDR4-2666 CL19 64GB RAM prices

The cheapest listed kit costs $399.16 ($6.24 per GB). The median is $7.44 per GB, across 6 ranked Newegg listings.

Checked on Oct 31, 2026. US dollars; tax and shipping excluded.

What this list covers

96 listings of other kinds, such as server, laptop, OEM-replacement or used parts, are left out of these figures.

Prices and value ranks here cover new desktop DDR4 and DDR5 modules. Laptop, server and ECC and used memory have their own pages. A shared generation or capacity does not establish fit.

Speed, CAS latency and total capacity come from the maker's specification where the kit is matched to it, otherwise from the listing's title, so a kit appears here only when all three are stated. A shared speed and latency does not establish fit: check the motherboard's memory support list.

Typical unit prices

Checked on
DDR4-2666 CL19 64GB RAM6 listed$7.44/GBUnchanged in 9 days, down 1.6% in 32 days

Typical = median of the listed products. Daily lines describe the recorded sample.

Compare DDR4-2666 CL19 64GB RAM prices

Will it fit? All platforms
AMD
Intel

The platform narrows memory by generation. Check the exact board's memory support list before you buy; this is not a fit verdict.

FiltersMaker, size and price
Brand
Maker
Price

Showing all 5 products.

Prices checked at Newegg US, before tax and shipping. Newegg links are affiliate links: a purchase may earn us a commission, and it never decides the order.

Current unit prices · checked Oct 31, 2026
Product and specificationsUnit priceNewegg priceCondition and availabilityPrice reference
OWC 64GB (4x16GB) DDR4 2666MHz PC4-21300 CL19 2RX8 Non-ECC UDIMM 1.2V 288-pin Desktop Memory RAM Upgrade for PCOWC 64GB (4x16GB) DDR4 2666MHz PC4-21300 CL19 2RX8 Non-ECC UDIMM 1.2V 288-pin Desktop Memory RAM Upgrade for PC64 GB (4 x 16GB) · DDR4$6.24 / GBLowest price per GB of 5 like itLowest we have recorded since Aug 3, 202630-day range $399.16–$439.08$399.16 at NeweggNew · In stock
NEMIX RAM 64GB (2X32GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 288-PIN Non-ECC Unbuffered UDIMM Desktop PC Memory KIT Compatible with ASUS...NEMIX RAM 64GB (2X32GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 288-PIN Non-ECC Unbuffered UDIMM Desktop PC Memory KIT Compatible with ASUS...64 GB (2 x 32GB) · DDR4$6.25 / GBLower price per GB than 75% of 5 like itLowest we have recorded since Aug 3, 2026$399.89 at NeweggNew · In stock
OWC 64GB (8x8GB) DDR4 2666MHz PC4-21300 CL19 1RX8 Non-ECC UDIMM 1.2V 288-pin Desktop Memory RAM Upgrade for PCOWC 64GB (8x8GB) DDR4 2666MHz PC4-21300 CL19 1RX8 Non-ECC UDIMM 1.2V 288-pin Desktop Memory RAM Upgrade for PC64 GB (8 x 8GB) · DDR4$6.68 / GBLower price per GB than 50% of 5 like itLowest we have recorded since Aug 3, 202630-day range $427.60–$443.44$427.60 at NeweggNew · In stock
Crucial 64GB (4 x 16GB) DDR4 2666MHz DRAM (Desktop Memory) CL19 1.2V DR DIMM (288-pin) CT4K16G4DFD8266Crucial 64GB (4 x 16GB) DDR4 2666MHz DRAM (Desktop Memory) CL19 1.2V DR DIMM (288-pin) CT4K16G4DFD826664 GB (4 x 16GB) · DDR4$8.20 / GBLower price per GB than 25% of 5 like itLowest we have recorded since Aug 3, 2026$525.01 at NeweggNew · In stock
NEMIX RAM 64GB (4X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 288-PIN UDIMM Memory KIT Compatible with Synology RackStation RS1619xs+ NASNEMIX RAM 64GB (4X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 288-PIN UDIMM Memory KIT Compatible with Synology RackStation RS1619xs+ NAS64 GB (4 x 16GB) · DDR4Also listed 1 more time by this maker at the same size and price$10.48 / GBLower price per GB than 0% of 5 like itLowest we have recorded since Aug 3, 2026$670.49 at NeweggNew · In stock

How to read this list

Generation, speed, latency, socket, interface and form factor can be searched together. Specifications from a listing title are not a fit check. “New” means the listing is not labelled used or refurbished. “Like it” compares a product with the others of the same capacity, generation and condition on this page. “Lowest we have recorded” compares the latest price with every daily price we have recorded for that exact product.

About these 5 products

5 ranked products from 6 listings (the same maker, size and price listed more than once is shown once).

Listings are on Newegg; the marketplace seller is not supplied. Availability can change at checkout.

Download the complete memory price list (CSV)

96 more listings are not ranked here

They are server, laptop, OEM-replacement, older-generation or used modules, which suit a different buyer or connection. Their own pages rank them against each other.

  • NEMIX RAM 64GB (4X16GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 260-PIN Non-ECC Unbuffered SODIMM Memory KIT Compatible with Apple 27' iMac with...: an OEM replacement part for one specific machine.
  • OWC 64GB (4x16GB) DDR4 2666MHz PC4-21300 CL19 2RX8 Non-ECC SODIMM 1.2V 260-pin Laptop Notebook Memory RAM Upgrade Module: laptop memory, outside this desktop ranking.
  • NEMIX RAM 64GB (2X32GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 288-PIN Non-ECC Unbuffered UDIMM Desktop PC Memory KIT Compatible with Dell Precision...: an OEM replacement part for one specific machine.
  • NEMIX RAM 64GB (2X32GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 288-PIN Non-ECC Unbuffered UDIMM Desktop PC Memory KIT Compatible with SuperMicro...: an OEM replacement part for one specific machine.
  • NEMIX RAM 64GB (2X32GB) DDR4 2666MHZ PC4-21300 2Rx8 1.2V CL19 288-PIN Non-ECC Unbuffered UDIMM Desktop PC Memory KIT Compatible with SuperMicro...: an OEM replacement part for one specific machine.
  • NEMIX RAM 64GB (1X64GB) DDR4 2666MHZ PC4-21300 2Rx4 1.2V CL19 288-PIN ECC RDIMM Registered Server Memory Compatible with ASRock Rack ROMED8-2T AMD...: registered memory; requires a platform that supports registered modules.
  • NEMIX RAM 64GB (1X64GB) DDR4 2666MHZ PC4-21300 2Rx4 1.2V CL19 288-PIN ECC RDIMM Registered Server Memory Compatible with SuperMicro...: an OEM replacement part for one specific machine.
  • NEMIX RAM 64GB (1X64GB) DDR4 2666MHZ PC4-21300 4Rx4 1.2V CL19 288-PIN ECC RDIMM Registered Server Memory Compatible with Lenovo 4X77A78614: an OEM replacement part for one specific machine.
  • NEMIX RAM 64GB (1X64GB) DDR4 2666MHZ PC4-21300 4Rx4 1.2V CL19 288-PIN ECC RDIMM Registered Server Memory Compatible with Micron MTA72ASS8G72PSZ-2S6: registered memory; requires a platform that supports registered modules.
  • NEMIX RAM 64GB (1X64GB) DDR4 2666MHZ PC4-21300 4Rx4 1.2V CL19 288-PIN ECC RDIMM Registered Server Memory Compatible with SuperMicro...: an OEM replacement part for one specific machine.
  • NEMIX RAM 64GB (1X64GB) DDR4 2666MHZ PC4-21300 4Rx4 1.2V CL19 288-PIN ECC RDIMM Registered Server Memory Compatible with Synology SA6400 NAS: registered memory; requires a platform that supports registered modules.
  • NEMIX RAM 64GB (1X64GB) DDR4 2666MHZ PC4-21300 4Rx4 1.2V CL19 288-PIN ECC LRDIMM Compatible with HPE 815101-B21 815101-H21 815101-K21 Load Reduced...: an OEM replacement part for one specific machine.

Server and ECC RAM pricesLaptop RAM pricesUsed RAM prices: refurbished and second-handAll memory segments

Other DDR4 kits at this speed or size

Each with its cheapest new kit, so the price of a lower latency or a larger kit is one look away.

Will DDR4-2666 run at 2666 in my PC?

2666 MT/s is within the rated speed of Ryzen 3000 (AM4), Ryzen 5000 (AM4), Core 12th Gen and Core 13th and 14th Gen.

Rated speeds with two modules: Ryzen 3000 (AM4) DDR4-3200 (2933 for the G models with graphics); Ryzen 5000 (AM4) DDR4-3200; Core 12th Gen DDR4-3200; Core 13th and 14th Gen DDR4-3200. Four modules are rated lower. The board decides the rest: check its memory support list, and read XMP and EXPO.

DDR4-2666 CL19 64GB RAM over time

DDR4-2666 CL19 64GB RAM · USD per GB · Updated Oct 31, 2026

$7.44per GB · Last observed Oct 31, 2026

Lowest recorded $7.44 on Oct 14, 2026 · Highest $7.81 on Aug 3, 2026

67 observed dates. Use the arrow keys on the chart to inspect a date.

DDR4-2666 CL19 64GB RAM67 observed dates from Aug 3, 2026 to Oct 31, 2026. Range $7.44 to $7.81 per GB. Missing dates have no line. The table below contains every value.$7.44$7.63$7.81Low · Oct 14High · Aug 32026-08-032026-10-31DDR4-2666 CL19 64GB RAM67 observed dates from Aug 3, 2026 to Oct 31, 2026. Range $7.44 to $7.81 per GB. Missing dates have no line. The table below contains every value.$7.44$7.63$7.81Low · Oct 14High · Aug 32026-08-032026-10-31
Daily prices and missing dates
DDR4-2666 CL19 64GB RAM, updated Oct 31, 2026. Each value is the median of the products observed on that date.
DateUSD / GBProducts observed
Aug 3, 2026$7.816
Aug 4, 2026$7.816
Aug 5, 2026$7.816
Aug 6, 2026$7.816
Aug 7, 2026$7.816
Aug 8, 2026$7.816
Aug 9, 2026$7.816
Aug 10, 2026$7.816
Aug 11, 2026$7.816
Aug 12, 2026$7.816
Aug 13, 2026No observationNone
Aug 14, 2026No observationNone
Aug 15, 2026No observationNone
Aug 16, 2026No observationNone
Aug 17, 2026$7.816
Aug 18, 2026$7.816
Aug 19, 2026No observationNone
Aug 20, 2026$7.816
Aug 21, 2026$7.816
Aug 22, 2026$7.816
Aug 23, 2026$7.816
Aug 24, 2026$7.816
Aug 25, 2026$7.816
Aug 26, 2026$7.816
Aug 27, 2026No observationNone
Aug 28, 2026No observationNone
Aug 29, 2026No observationNone
Aug 30, 2026No observationNone
Aug 31, 2026No observationNone
Sep 1, 2026$7.816
Sep 2, 2026No observationNone
Sep 3, 2026$7.816
Sep 4, 2026$7.816
Sep 5, 2026$7.816
Sep 6, 2026$7.816
Sep 7, 2026$7.816
Sep 8, 2026$7.816
Sep 9, 2026$7.816
Sep 10, 2026$7.816
Sep 11, 2026$7.816
Sep 12, 2026$7.816
Sep 13, 2026$7.816
Sep 14, 2026$7.816
Sep 15, 2026$7.816
Sep 16, 2026$7.816
Sep 17, 2026$7.816
Sep 18, 2026$7.816
Sep 19, 2026$7.576
Sep 20, 2026$7.576
Sep 21, 2026$7.576
Sep 22, 2026$7.576
Sep 23, 2026No observationNone
Sep 24, 2026$7.576
Sep 25, 2026$7.576
Sep 26, 2026$7.576
Sep 27, 2026$7.576
Sep 28, 2026$7.576
Sep 29, 2026$7.576
Sep 30, 2026No observationNone
Oct 1, 2026No observationNone
Oct 2, 2026No observationNone
Oct 3, 2026$7.576
Oct 4, 2026$7.576
Oct 5, 2026$7.576
Oct 6, 2026$7.576
Oct 7, 2026$7.576
Oct 8, 2026$7.576
Oct 9, 2026$7.576
Oct 10, 2026$7.576
Oct 11, 2026$7.576
Oct 12, 2026$7.576
Oct 13, 2026$7.576
Oct 14, 2026$7.446
Oct 15, 2026$7.446
Oct 16, 2026$7.446
Oct 17, 2026$7.446
Oct 18, 2026No observationNone
Oct 19, 2026$7.446
Oct 20, 2026No observationNone
Oct 21, 2026No observationNone
Oct 22, 2026$7.446
Oct 23, 2026No observationNone
Oct 24, 2026No observationNone
Oct 25, 2026No observationNone
Oct 26, 2026No observationNone
Oct 27, 2026No observationNone
Oct 28, 2026$7.446
Oct 29, 2026$7.446
Oct 30, 2026$7.446
Oct 31, 2026$7.446
2026-08-03: collected2026-08-04: collected2026-08-05: collected2026-08-06: collected2026-08-07: collected2026-08-08: collected2026-08-09: collected2026-08-10: collected2026-08-11: collected2026-08-12: collected2026-08-13: no observation2026-08-14: no observation2026-08-15: no observation2026-08-16: no observation2026-08-17: collected2026-08-18: collected2026-08-19: no observation2026-08-20: collected2026-08-21: collected2026-08-22: collected2026-08-23: collected2026-08-24: collected2026-08-25: collected2026-08-26: collected2026-08-27: no observation2026-08-28: no observation2026-08-29: no observation2026-08-30: no observation2026-08-31: no observation2026-09-01: collected2026-09-02: no observation2026-09-03: collected2026-09-04: collected2026-09-05: collected2026-09-06: collected2026-09-07: collected2026-09-08: collected2026-09-09: collected2026-09-10: collected2026-09-11: collected2026-09-12: collected2026-09-13: collected2026-09-14: collected2026-09-15: collected2026-09-16: collected2026-09-17: collected2026-09-18: collected2026-09-19: collected2026-09-20: collected2026-09-21: collected2026-09-22: collected2026-09-23: no observation2026-09-24: collected2026-09-25: collected2026-09-26: collected2026-09-27: collected2026-09-28: collected2026-09-29: collected2026-09-30: no observation2026-10-01: no observation2026-10-02: no observation2026-10-03: collected2026-10-04: collected2026-10-05: collected2026-10-06: collected2026-10-07: collected2026-10-08: collected2026-10-09: collected2026-10-10: collected2026-10-11: collected2026-10-12: collected2026-10-13: collected2026-10-14: collected2026-10-15: collected2026-10-16: collected2026-10-17: collected2026-10-18: no observation2026-10-19: collected2026-10-20: no observation2026-10-21: no observation2026-10-22: collected2026-10-23: no observation2026-10-24: no observation2026-10-25: no observation2026-10-26: no observation2026-10-27: no observation2026-10-28: collected2026-10-29: collected2026-10-30: collected2026-10-31: collected
67 collection days · 23 missed · Aug 3, 2026 to Oct 31, 2026

Daily medians use identifiable products in this list; product availability and mix can change. Missing collection dates remain gaps.

Related comparisons