These printers use the TN550 cartridge:

Brother DCP 8060

Brother DCP 8060 DN

Brother DCP 8065DN

Brother HL 5200

Brother HL 5240

Brother HL 5240 LT

Brother HL 5250

Brother HL 5250 DN

Brother HL 5250 DNHY

Brother HL 5250 DNLT

Brother HL 5250 DNT

Brother HL 5270 DN2LT

Brother HL 5270 DN

Brother HL 5280 DW

Brother HL 5280 DWLT

Brother MFC 8460 N

Brother MFC 8470 DN MFP

Brother MFC 8470 DN

Brother MFC 8660 DN

Brother MFC 8670 DN

Brother MFC 8860 DN

Brother MFC 8860 N

Brother MFC 8870 DW