This is an SSD drive with a 512 GB storage capacity. The form factor is M.2 and it connects the hard drive directly to the motherboard.
From Amazon
ADATA SSD Legend 710 M.2 512GB PCIe Gen3 x4 M.2 2280 Solid State Drive, Design for Creator Gaming, Read Speed up to 2,400 MB/s, 3D NAND, LDPC, AES 256-bit Encryption
ShopBetter24
Hard Drive Adata ALEG-710-512GCS M.2 512 GB
Shopaide
Hard Drive Adata ALEG-710-512GCS M.2 512 GB
OnBuy
ADATA Legend 710 - SSD - 512 GB - PCIe 3.0 x4 (NVMe)