Used HDDs available All are working There is one external from WD 3 Tera Price: 250 SAR And the rest are internal 1000 GB or 1 TB for 100 SAR 500 GB for 50 SAR There are 3 500 GB, one 1 TB, and one 3 TB Also, there are empty USB 2.0 and 2.1 cases There are two, each for 15 SAR