✔ 最佳答案
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00858805&lc=en&cc=vn&dlc=en&product=3364030&printable=no&dest_page=documentIndex#N368
the above link tell us, that it does not come with a 3.5 drive.
Since it is an older technology, if you need 3.5 drive, you can always get an external one. But most newer PC may not even have the floppy drive support
or don't have the SLOT/SHELF to hold that 3.5 drive.
hope all help