Used section is filled with "refurbished" 0 hours SMART drives. Those are >40K hours drives with wiped SMART. Sometimes people doing the wiping are sloppy and you can dig into previous smart logs. Example:
SMART Extended Self-test Log Version: 1 (1 sectors)
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Aborted by host 90% 11829 -
# 2 Short offline Completed without error 00% 5586 -
# 3 Short offline Completed without error 00% 41650 -
# 4 Vendor (0xb0) Completed without error 00% 41252 -
# 5 Vendor (0x71) Completed without error 00% 41251 -
I bought this one "0 hours refurbished", ran Short offline after a year with 5K and another (clicked by accident so quickly aborted) a week ago with 11K. 52K hours total.New section is full of "new" MaxDigitalData refurbs. Same drives as in Used section, but with new sticker and wiped SMART. :)