Sata II HDD compatibility

Solution
Hello there, Toilips!

Just like the others mentioned, the SATA II (3 Gb/s = max 300MB/s) and SATA III (6 Gb/s = max 600MB/s) are backwards compatible, so your friend shouldn't face any complications using his old SATA II HDD on the SATA III laptop's motherboard.
Moreover, mechanical hard drives are limited in by the RPMs and platter density and it prevents them from exceeding the SATA II bandwidth. SATA III is necessary for devices like the SSDs that are capable of exceeding the SATA II and reach transfer rates over 500 MB/s.

Best of luck! :)
SuperSoph_WD
Hello there, Toilips!

Just like the others mentioned, the SATA II (3 Gb/s = max 300MB/s) and SATA III (6 Gb/s = max 600MB/s) are backwards compatible, so your friend shouldn't face any complications using his old SATA II HDD on the SATA III laptop's motherboard.
Moreover, mechanical hard drives are limited in by the RPMs and platter density and it prevents them from exceeding the SATA II bandwidth. SATA III is necessary for devices like the SSDs that are capable of exceeding the SATA II and reach transfer rates over 500 MB/s.

Best of luck! :)
SuperSoph_WD
 
Solution