HP ProBook 640 G2 Maintenance And Service Manual page 36

Item Component
Huawei Wrangler MU736 HSPA+ w/GPS M.2
(25) Battery
(26) Optical drive
NOTE:
(27) Service door
For 14" products
For 15" products
26 Chapter 3 Illustrated parts catalog
For spare part information, see Mass storage devices on page 29.
Spare part number
793516-001
801554-001
845169-001
845171-001