Seagate Momentus 5400.4 250GB, ST9250827AS (9DG134-070)

Overview
Lenovo P/N 42T1113, ASM P/N 42T1553, FRU 42T1517

"100484444 REV A" is etched onto the (visible) bottom layer of this particular controller board (w/ FW 3.CMF).