Asus X509UJ - RAM Upgrade Guide
The Asus X509UJ laptop has a single memory slot available for RAM upgrades. It can support a maximum of 24GB of memory, with up to 16GB in the user-accessible slot. The type of memory compatible with this device is DDR4 SDRAM, and it uses a SODIMM form factor, which is a compact design commonly used in laptops. For optimal performance, it is suggested to use RAM with a clock speed of 2666MHz, also referred to as PC4-21300.
Asus X509UJ Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus X509UJ |
| Total memory slots | 1 |
| Maximum RAM | 24GB (up to 16GB in user accessible slot) |
| Memory type | DDR4 SDRAM |
| Form factor | SODIMM (Small Outline Dual Inline Memory Module) |
| Recommended RAM clock speed | 2666MHz (PC4-21300) |
| Voltage | Low - 1.2V |
| Number of pins | 260-pin |
FAQ about Asus X509UJ RAM
How much RAM can I put in my X509UJ laptop?
You can install up to 16GB in the single accessible memory slot. The laptop technically supports 24GB total, but some memory is soldered to the motherboard and can't be changed.
What type of memory does the X509UJ use?
It uses DDR4 SODIMM modules - the smaller laptop-sized memory sticks. Make sure you get SODIMM, not regular desktop RAM which won't fit.
What speed RAM should I buy for the X509UJ?
Get 2666MHz DDR4 (also labeled as PC4-21300). The system might work with faster RAM but it'll just run at 2666MHz anyway, so no point spending extra.
Can I add a second RAM stick to the X509UJ?
No, there's only one upgradeable slot. Some memory is permanently attached to the motherboard, so you're limited to upgrading that single slot.
Is it worth upgrading from 8GB to 16GB on this laptop?
If you're multitasking, using lots of browser tabs, or doing any photo/video editing, definitely. The jump from 8GB to 16GB makes a noticeable difference in everyday use.