HP Compaq 6720t Maintenance And Service Manual page 23

Item Description
(16) 1024-MB, PC2-5300, 667-MHz, DDR2 memory module
(17) 6-cell, 47-Wh Li-ion battery
(18) 8X Max DVD-ROM Drive (includes bezel and bracket)
Spare part
number
414046-001
467784-001
467782-001
Computer major components 15