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Samsung M378A2K43CB1-CTD 16 GB DDR4 2666 MHz Memory Module - Memory Modules (16 GB, 2 x 8 GB, DDR4, 2666 MHz, 288-pin DIMM, Black, Green)

Samsung M378A2K43CB1-CTD 16 GB DDR4 2666 MHz Memory Module - Memory Modules (16 GB, 2 x 8 GB, DDR4, 2666 MHz, 288-pin DIMM, Black, Green)

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Best price right now

$131.83at eBay

Poor price·score 2/10·+149% vs ATL

Near all-time high — wait for a drop.

Samsung M378A2K43CB1-CTD 16 GB DDR4 2666 MHz Memory Module - Memory Modules (16 GB, 2 x 8 GB, DDR4, 2666 MHz, 288-pin DIMM, Black, Green)

Updated 6h ago

Product Details & Price Comparison

We rank retailers by current price, seller trust, and live availability so weak third-party offers do not look better than they are.

$131.83View offer

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Set Price Alert

Above its 30-day averageFit: Everyday desktop

This kit is 15.1% above its 30-day average ($114.52). Its own recent pricing suggests better entries — worth waiting or setting an alert if you can.

Current price

$131.83

Vs all-time low

149% above ATL

Best trusted retailer

eBay $131.83

See price on eBay

Primary recommendation: eBay at $131.83.

Better alternatives right now

If the current kit feels overpriced, these similar options are closer to a smart buy today.

Crucial 16GB DDR4 2666 MT/s (PC4-21300) UDIMM 288-Pin Memory - CT16G4DFRA266

Crucial 16GB DDR4 2666 MT/s (PC4-21300) UDIMM 288-Pin Memory - CT16G4DFRA266

DDR4 · 16GB · 2666MHz

$59.99$3.75/GB

View on eBay Why this is better

Patriot Viper Steel RGB DDR4 RAM 32GB (2X16GB) 3200MHz CL18 1.35v UDIMM Desktop Gaming Memory Kit Compatible with XMP - PVSR432G320C8K

Patriot Viper Steel RGB DDR4 RAM 32GB (2X16GB) 3200MHz CL18 1.35v UDIMM Desktop Gaming Memory Kit Compatible with XMP - PVSR432G320C8K

DDR4 · 32GB · 3200MHz

$234.99$7.34/GB

View on eBay Why this is better

Compatible Motherboards

Shop on Newegg — RamRadar earns a small commission from qualifying purchases.

ASUS Prime B760M-A WiFi D4

MSI PRO B760M-A WiFi DDR4

ASUS ROG Crosshair VIII Hero

ASUS ROG Strix B550-F Gaming WiFi II

ASUS TUF Gaming B550-Plus WiFi II

ASUS Prime B550M-A WiFi II

MSI MAG X570S Tomahawk Max WiFi

MSI MAG B550 Tomahawk

MSI PRO B550M-VC WiFi

Gigabyte X570 AORUS Master

Price History (Last 90 days)

30D 90D 180D 1Y ALL

Technical Specifications

Memory TypeDDR4

Capacity2x8GB

CAS LatencyCAS Latency — lower is faster. Measures the delay between a memory request and data delivery.N/A

Speed2666MHz

Voltage1.2V

Form FactorDual Inline Memory Module — standard desktop RAM form factorDIMM

Price Alert

Get notified when the price drops to your target. ATL is $52.99.

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Target price in US dollars

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Alerts are always set in USD. Prices elsewhere on this page follow your selected currency.

Similar kits we track

Same memory generation, similar specs, and cleaner alternatives worth comparing before you buy.

Crucial 16GB DDR4 2666 MT/s (PC4-21300) UDIMM 288-Pin Memory - CT16G4DFRA266

Crucial 16GB DDR4 2666 MT/s (PC4-21300) UDIMM 288-Pin Memory - CT16G4DFRA266

Patriot Viper Steel RGB DDR4 RAM 32GB (2X16GB) 3200MHz CL18 1.35v UDIMM Desktop Gaming Memory Kit Compatible with XMP - PVSR432G320C8K

Patriot Viper Steel RGB DDR4 RAM 32GB (2X16GB) 3200MHz CL18 1.35v UDIMM Desktop Gaming Memory Kit Compatible with XMP - PVSR432G320C8K

G.SKILL Trident Z RGB Series DDR4 RAM (XMP) 32GB (2x16GB) 3200MT/s CL16-18-18-38 1.35V Intel AMD Desktop Computer Memory U-DIMM (F4-3200C16D-32GTZR)

G.SKILL Trident Z RGB Series DDR4 RAM (XMP) 32GB (2x16GB) 3200MT/s CL16-18-18-38 1.35V Intel AMD Desktop Computer Memory U-DIMM (F4-3200C16D-32GTZR)

G.SKILL AEGIS Series DDR4 RAM 16GB (1x16GB) 2666MT/s CL19-19-19-43 1.20V Intel AMD Desktop Computer Memory U-DIMM (F4-2666C19S-16GIS)

G.SKILL AEGIS Series DDR4 RAM 16GB (1x16GB) 2666MT/s CL19-19-19-43 1.20V Intel AMD Desktop Computer Memory U-DIMM (F4-2666C19S-16GIS)

Track DDR4 & DDR5 RAM prices in real time. Compare across retailers and get alerts when prices drop.

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Samsung M378A2K43CB1-CTD 16 GB DDR4 2666 MHz Memory Module -… — $131.83 | RamRadar | RamRadar

Price analysis

RamRadar has recorded 25 price points for this kit since June 2026. At $131.83, it sits 148.8% above its all-time low of $52.99 (June 2026) and 2.0% below its all-time high of $134.52 (June 2026). The price has risen $78.84 (148.8%) over the past 30 days.

At $8.24 per GB, it runs 10.4% above the current DDR4 desktop average of $7.46 per GB. The 30-day trend points upward.

Is $131.83 a good price for the Samsung M378A2K43CB1-CTD 16 GB DDR4 2666 MHz Memory Module -…?+

$131.83 is near the top of the $52.99–$134.52 range RamRadar has recorded for this kit — it has sold for as little as $52.99 in June 2026. By its own price history this is an expensive time to buy.

Will the Samsung M378A2K43CB1-CTD 16 GB DDR4 2666 MHz Memory Module -… get cheaper?+

The recent direction is up — the price has risen $78.84 (148.8%) over the past 30 days — so nothing in our data points to an imminent drop. Trends do reverse, though; a price alert on this page will notify you if it falls to your target.

How does the Samsung M378A2K43CB1-CTD 16 GB DDR4 2666 MHz Memory Module -… compare with other DDR4 kits on price?+

It currently costs $8.24 per GB, 10.4% above the DDR4 desktop average of $7.46 per GB computed across the 99 kits RamRadar tracks in that segment. On a per-gigabyte basis it costs more than the typical kit we track.