Upgrading RAM on Dell Inspiron 15R and Dell Inspiron 7548 laptops

Hello everyone,

Both the laptops Dell Inspiron 15R and Dell Inspiron 7548 came with 6 GB of RAM. I'd like to upgrade it to at least 12 GB by replacing the 2 GB dimms in both laptops with 8 GB dimms.

Was wondering whether it is safe and okay to combine different memory modules from different manufacturers.

I'm also leaving the US next week and so would prefer getting RAM that's more reliable and wouldn't mess up the laptops.

Could you guys please recommend which ones you'd get? I've bought Samsung and Crucial in the past and didn't have any issues.

Here's the existing RAM information from CPU–Z:

Inspiron 15R:





Inspiron 7548:





Based on the above information, could you please recommend the sticks that you would get, preferably from Amazon?

Dell's upgrade page for Inspiron 15R recommends this one:

Dell 8 GB Certified Replacement Memory Module for Select Dell Systems - 1600MHz LV SODIMM : Memory | Dell which is 1600 MHz.

So can I get this one for that laptop: Kingston Technology 8GB 1600MHz DDR3L (PC3-12800) 1.35V Non-ECC CL11 SODIMM Intel Laptop Memory KVR16LS11/8 at Amazon.com

This would match the manufacturer of the existing stick (Kingston).

Dell's upgrade page recommended the same stick for Dell Inspiron 7548 as well.

Since I wasn't able to locate Hyundai's 8GB stick, is it okay if I get Kingston or Crucial's stick:

Kingston Technology 8GB 1600MHz DDR3L (PC3-12800) 1.35V Non-ECC CL11 SODIMM Intel Laptop Memory KVR16LS11/8 at Amazon.com

Amazon.com: Crucial 8GB Single DDR3 1600 MT/s (PC3-12800) CL11 SODIMM 204-Pin 1.35V/1.5V Notebook Memory CT102464BF160B: Computers & Accessories

Any comments or be greatly appreciated. Many thanks in advance.