Apple's 21.5-inch iMac finally ditches mechanical hard drives for SSDs | AppleInsider
SKHynix 512GB 256GB PCIe Gen3 x 2 M.2 2242 NVMe SSD HFM512GDHTNG-8310A BA SSD | eBay
Which should I choose, 512GB m.2 SSD (super fast) or 256GB SATA SSD (faster than HDD) + 1TB regular HDD for laptop (price difference is 1k to 3k? - Quora
All New 2021 MacBook Pro Models Start with 512GB Storage