8GB (2X4GB) Memory RAM for Acer Aspire 1820PTZ Laptop Memory Upgrade - Limited Lifetime Warranty from Seifelden Without any debate, adding more memory to your computer system or replacing defected memory increases the performance of your computer. .Upgrading your memory is the easy and faster solution to increase the speed and performance of your computer. Capacity : 8GB for Acer Aspire 1820PTZ Premier Brand Memory We only use branded memory modules from leading manufacturers which includes but is not limited to :- Samsung, Hynix, Elpida, Hypertec, Micron and Integral. Technical Support Memory is supported by Seifelden with 100% tecnical support by phone and email 24/7. 100% Compatibility Every memory product matched specifically to your machine is individually tested to guarantee reliability and 100% compatibility with your computer and operating system. Limited Lifetime Warranty Feel confident that your memory will last a lifetime. Our lifetime warranty guarantees that if your memory should ever fail we will replace or repair the product free of charge provided that the memory is still manufactured.