Does this work on a Lenovo A9 - 9420 laptop?

The Ram clock speed for your A9 APU might down clock to 2133MHZ! But running in single channel will clock it to 1066MHZ like DDR3L! I wouldn’t put this stick of DDR4 ram in a DDR3 machine! It might not post on the first boot or it might not boot at all!

I have m471a1g43db0 -cbp in one slot. will this be compaitible with it in 2nd slot to expand to total 16 gb

It should, your old memory is slower speed

Will this work with acer Acer Aspire 5 ?

Are you swapping out a single module, or adding RAM to your machine? If adding RAM, you really should pair the exact same type of module with it, (DDR rating, speed/bandwidth, latency, etc), just open your laptop up and look at the sticker on the module itself. If you are replacing a single module to be used on its own, then yes this RAM should work in the Acer aspire 5, it uses DDR4 and the 260-pin sodimm form factor.

Does it wortks on lenovo 81w10094us laptop?

if you have available DDR4 260pin DDR4 memory module, then yes

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Samsung 8GB DDR4 PC4-21300, 2666MHZ, 260 PIN SODIMM, 1.2V, CL 19 laptop ram memory module

Product ID: 740292275

Details

RAMメモリ技術
DDR4
コンピュータメモリサイズ
8 GB
ブランド
サムスン(SAMSUNG)
メモリ速度
2666 MHz
対応デバイス
ノートパソコン

⚡2666MHz blazing speed

💾8GB high-capacity memory

🔋1.2V low power efficiency

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Description

🚀 Upgrade your laptop’s brainpower — don’t get left behind!

BLAZING 2666 M HZ SPEED - Turbocharge your laptop performance with lightning-fast DDR4 memory.
COMPACT 260 PIN SO DIMM - Seamlessly fits into ultra-slim laptops for sleek, powerful upgrades.
RELIABLE SAMSUNG QUALITY - Backed by Samsung’s permanent warranty for worry-free longevity.
POWER SAVVY 1 2 V OPERATION - Maximize battery life without compromising on speed or stability.
SMOOTH MULTITASKING MASTERY - 8GB capacity ensures effortless handling of demanding apps and workflows.

Samsung’s 8GB DDR4 PC4-21300 SO-DIMM RAM module delivers 2666MHz speed with low 1.2V power consumption, designed for laptops with a compact 260-pin form factor. Engineered for reliable, high-performance multitasking, it comes with Samsung’s permanent warranty, making it the smart choice for professionals seeking a seamless, powerful memory upgrade.

Specifications

ASIN	B07F6HBK1N
Amazon 売れ筋ランキング	パソコン・周辺機器 - 9,731位 ( パソコン・周辺機器の売れ筋ランキングを見る ) PC用メモリ - 32位
RAMメモリ採用技術	DDR4
UPC	634158069369
おすすめ度	4.6 5つ星のうち4.6 (932) var
カラムアドレスストローブレイテンシ	19
コンピュータメモリサイズ	8 GB
データ転送速度	2666 MHz
ピンの数	260
フォームファクター	SO-DIMM
ブランド名	サムスン(SAMSUNG)
メモリ速度(Mhz)	2666 MHz
メーカー名	Samsung
メーカー型番	M471A1K43CB1-CTD
互換デバイス	ノートパソコン
商品の追加説明1	軽量
商品の重量	0.04 ポンド
型番	M471A1K43CB1-CTD
電圧	1.2 ボルト

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$100.37

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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