![Computer Memory Card 4GB 1600M Hz DDR3 Single RAM Memory Module for Samsung PC3 Third Generation Laptop Accessories: Amazon.co.uk: Computers & Accessories Computer Memory Card 4GB 1600M Hz DDR3 Single RAM Memory Module for Samsung PC3 Third Generation Laptop Accessories: Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/61olE0nccBL.jpg)
Computer Memory Card 4GB 1600M Hz DDR3 Single RAM Memory Module for Samsung PC3 Third Generation Laptop Accessories: Amazon.co.uk: Computers & Accessories
![Computer Memory Card 1GB 1333M Hz DDR3 Single RAM Memory Module for Samsung PC3 Third Generation Laptop Accessories: Amazon.co.uk: Computers & Accessories Computer Memory Card 1GB 1333M Hz DDR3 Single RAM Memory Module for Samsung PC3 Third Generation Laptop Accessories: Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/71tVSzxT-NL._AC_UF1000,1000_QL80_.jpg)
Computer Memory Card 1GB 1333M Hz DDR3 Single RAM Memory Module for Samsung PC3 Third Generation Laptop Accessories: Amazon.co.uk: Computers & Accessories
![I tried to purchase some RAM for my computer, but the grooves don't match and the new RAM sticks won't fit in. I thought all laptop RAM sticks were compatible and interchangeable. I tried to purchase some RAM for my computer, but the grooves don't match and the new RAM sticks won't fit in. I thought all laptop RAM sticks were compatible and interchangeable.](https://preview.redd.it/i-tried-to-purchase-some-ram-for-my-computer-but-the-v0-zy9ecpfs5tt81.jpg?width=576&format=pjpg&auto=webp&s=6e549948a2efe10cf272375436723a60776c2280)
I tried to purchase some RAM for my computer, but the grooves don't match and the new RAM sticks won't fit in. I thought all laptop RAM sticks were compatible and interchangeable.
![Computer Memory Card 4GB 1066M Hz DDR3 Single RAM Memory Module for Samsung PC3 Third Generation Laptop Accessories: Amazon.co.uk: Computers & Accessories Computer Memory Card 4GB 1066M Hz DDR3 Single RAM Memory Module for Samsung PC3 Third Generation Laptop Accessories: Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/I/71zuTSw8a8L._AC_UF1000,1000_QL80_.jpg)