These 2 memory modules are part of my brother's computer items that I found in his office after his passing. He had just completed building a new computer and I found lots of miscellaneous parts. These are new modules and I believe my brother was a gamer so they may be to enhance you space and speeds (maybe, not sure) lol.
I'm not a computer guru but I will note the information on the tag and what I found on the ai scan I did.
Capacity: This is part of an 8GB Kit consisting of two 4GB Modules.Type: DDR3 SDRAMSpeed: 1333MHzLatency: CL9Voltage: 1.5VForm Factor: 240-pin DIMM for desktop computers.Features: Non-ECC unbuffered, and includes a blue heat spreader for thermal management.
Extra info:The Kingston Hyper X KHX1333C9D3B1K2 is an 8GB DDR3 SDRAM memory module kit designed for computers and networking devices. This high-quality RAM from Kingston offers reliable and fast performance for a range of computing tasks. With its DDR3 technology, the module provides efficient data transfer rates, making it an essential component for enhancing the speed and responsiveness of your system. Perfect for users looking to upgrade their memory capacity and improve overall system performance.
As I mentioned, I do not know all these computer parts but I would be happy to try to answer your questions.