This hard drive from Toshiba has room for 4 TB of data. It has a 7 200 rpm rotation speed.
From Amazon
Toshiba MG04ACA400N - Hard drive - 4 TB - internal - 3.5" - SATA 6Gb/s - NL - 7200 rpm - buffer: 128 MB
AA2Z Supply
TOSHIBA MG04ACA400N 4TB 7200RPM 128MB BUFFER, SATA-6GBPS 3.5INCH INTERNAL HARD DRIVE. BULK DELL OEM. .