Asus K401UB - RAM Upgrade Guide

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The Asus K401UB laptop has two memory slots for RAM, but only one of these slots can be upgraded by the user. The total memory capacity for this device is up to 12GB, with the user-accessible slot supporting a maximum of 8GB. The type of memory used is DDR3 SDRAM, and it comes in a small outline dual inline memory module (SODIMM) format, which is typical for laptops. For optimal performance, the recommended clock speed for the RAM is 1600MHz, often referred to as PC3-12800.

Asus K401UB Memory Specifications & Maximum RAM Capacity

SpecificationValue
Laptop ModelAsus K401UB
Total memory slots2 (1 not upgradeable)
Maximum RAM12GB (up to 8GB in user accessible slot)
Memory typeDDR3 SDRAM
Form factorSODIMM (Small Outline Dual Inline Memory Module)
Recommended RAM clock speed1600MHz (PC3-12800)
VoltageLow - 1.35V (DDR3L / PC3L)
Number of pins204-pin

FAQ about Asus K401UB RAM

How many RAM slots does the Asus K401UB have?

It has 2 slots total, but only 1 is accessible for upgrades. The other slot has soldered memory that can't be removed.

What's the maximum RAM I can have in this laptop?

12GB total - that's 4GB soldered on the motherboard plus up to 8GB in the upgradeable slot.

What type of RAM do I need to buy?

You need DDR3 SODIMM (the smaller laptop memory sticks). Make sure it's DDR3, not DDR4 or DDR5 - they won't fit.

What speed RAM should I get?

1600MHz (also labeled as PC3-12800) is the recommended speed. Faster RAM will work but will just run at 1600MHz anyway.

Can I upgrade both RAM slots?

No, only one slot can be upgraded. The other has memory permanently attached to the motherboard.