Pulled from open box system.
These are OEM Single Rank Modules 1Rx8, with only 8 chips on only one side. Most retail 32GB modules are dual rank, with 8 chips on each side for a total of 16 chips per module. These are a total of 8 high density chips only on one side per module.Designed for laptops and mini pcs focused on lower heat, lower power consumption, overclocking and stability.Fully Tested. If you are switching from dual rank to these single rank you may need reset the CMOS to clear the memory timing cache when installing. Newer laptops without the coin battery must disconnect the battery instead.Mixing Single and Dual rank modules NOT recommended if buying unpaired individual modules.Actual modules and serial numbers in photo.Buyer shall receive one of either set.