$15
Brother black and white toner model TN-221BK.
Compatible with these Brother printers and all-in-ones: HL-3140CW, HL-3170CDW, HL-3180CDW, MFC-9130CW, MFC-9330CDW, and MFC-9340CDW.
Output yield approximately 2,500 pages.
These sell new for about $77 on Amazon, and used for about $20 on resale websites.
We have TWO of these cartridges, one new and unopened; the other has been opened but not used.
$15 or best offer for the unopened toner cartridge.
If you get it, you can have the second cartridge for free.
(The PRINTER in the photo (compatible with the toner) is also for sale, and is a Brother all-in-one wireless color printer model # MFC9340CDW, for $40 obo.
)