Samsung 4GB RAM Memory Cards – PC3L-12800S DDR3 (Set of 2) This RAM memory cards were never used to their full potential. I had bought them a few years back to upgrade an old laptop of mine, though I never got a chance to use them properly. Both 4GB RAM cards are in excellent working condition. It would be ideal for multitasking, gaming, and boosting your laptop’s performance for everyday use. From my understanding they only fit laptops that do not have RAM cards fixed into the motherboard.