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 M471A1K43CB1-CTD 8GB DDR4 PC4-21300, 2666MHZ, 260 PIN SODIMM, 1.2V, CL 19 laptop ram memory module

Samsung M471A1K43CB1-CTD 8GB DDR4 PC4-21300, 2666MHZ, 260 PIN SODIMM, 1.2V, CL 19 laptop ram memory module

Product ID: 70707847

Details

Brand
Samsung
Compatible Devices
Laptop
Computer Memory Size
8 GB
Memory Speed
2666 MHz
RAM Memory Technology
DDR4

⚡2666 MHz blazing speed

💾8GB DDR4 capacity

🔋1.2V power efficient

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Description

🚀 Upgrade your workflow with lightning-fast, power-smart Samsung RAM!

POWER SMART RUN LONGER - Low 1.2V voltage ensures efficient power consumption for extended battery life.
TRUSTED SAMSUNG QUALITY - Join thousands of professionals enjoying a 4.8-star rated memory boost.
PLUG PLAY COMPATIBILITY - 260-pin form factor tailored for laptops, making upgrades effortless.
SLEEK LIGHTWEIGHT DESIGN - At just 18g, this SO-DIMM module fits perfectly without adding bulk.
TURBOCHARGE YOUR LAPTOP PERFORMANCE - Experience seamless multitasking with 8GB DDR4 memory at 2666 MHz speed.

The Samsung M471A1K43CB1-CTD is an 8GB DDR4 SO-DIMM laptop memory module operating at 2666 MHz with a low 1.2V voltage. Its 260-pin design ensures broad laptop compatibility, while its lightweight 18g form factor keeps your device sleek. Highly rated by users, it delivers reliable, efficient performance for professional multitasking and enhanced productivity.

Specifications

ASIN	B07F6HBK1N
Additional Features	Lightweight
Best Sellers Rank	#619 in Computer Memory
Brand	Samsung
Column Address Strobe Latency	19
Compatible Devices	Laptop
Customer Reviews	4.8 4.8 out of 5 stars (980)
Data Transfer Rate	2666 MHz
Form Factor	SO-DIMM
Item Weight	18.14 g
Manufacturer	Samsung
Memory Form Factor	SODIMM
Memory Generation	DDR4
Memory Speed	2666 MHz
Mfr Part Number	M471A1K43CB1-CTD
Model Name	M471A1K43CB1-CTD
Model Number	M471A1K43CB1-CTD
Number of Pins	260
RAM Memory Technology	DDR4
RAM Size	8 GB
UPC	634158069369
Voltage	1.2 Volts

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