Compatible Brother LC 235/237/LC235/LC237 XL/LC-235/LC-237.
They all have new chips (V3) for old & new printers. 
B-237XL    Black     1,200 Pages (28ml)
Using printer: DCP-J4120DW, MFC-J4620DW
B-239XL    Black     2,400 Pages (58ml)
Using printer: MFC-J5320DW, MFC-J5720DW
B-235XL    Cyan         1,200 Pages (15ml)
B-235XL    Megenta   1,200 Pages (15ml)
B-235CL   Yellow       1,200 Pages (15ml)
Using printer: DCP-J4120DW, MFC-J4620DW, J5320DW, J5720DW