Bought RAM for my laptop, product page mentioned x8 RAM but the sticker on RAM says it's x16, saw some videos online that x16 RAMs have 4 black squares while x8 RAMs
Crucial 16GB Single DDR4 2133 MT/s (PC4-17000) DR x8 SODIMM 260-Pin Memory - CT16G4SFD8213 at Amazon.com
Yunseity Business Laptop, 15.6 inch 1920x1080 IPS HD Laptop Computer 8GB DDR4L 128GB SSD J4125 Quad Core Processor 6000mAh Mini Laptop with Backlit Keyboard for Windows 11(US) - Walmart.com
PNY Performance 32GB (2x16GB) DDR4 DRAM 2666MHz (PC4-21300) CL19 (Compatible with 2400MHz or 2133MHz) 1.2V Dual Channel Notebook/Laptop (SODIMM) Computer Memory Kit – MN32GK2D42666 at Amazon.com
8GB 2x 4GB 2GB 1GB DDR2 PC2-5300S 667MHz Laptop SODIMM RAM For Samsung LOT UK | eBay