SATA HDD to IBM interface
2.5″ 2ND SATA HDD Caddy 12.7mm to CD DVD RW Rom for IBM Lenovo A20 A21 A22 A30 A31 T20 T21 T22 T24 T30 R30 R31 R32 R40 X20 X21 X22 X23 X24 X30
$7.50Let add 2nd HDD in your laptop ~ easy install and free driver used.