Your search for "Brother 660" revealed the following:

Valuetoner Compatible Toner Cartridge Replacement for Brother TN660 TN-660 TN630 TN-630 High Yield to use with HL-L2300D HL-L2320D HL-L2340DW HL-L2360DW MFC-L2720DW MFC-L2740DW DCP-L2540DW (2 Black)

2600
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HL-L2300D HL-L2305W HL-L2315DW HL-L2320D HL-L2340DW HL-L2360DW HL-L2380DW DCP-L2520DW DCP-L2540DW MFC-L2680W MFC-L2685DW MFC-L2700DW MFC-L2705DW MFC-L2707DW MFC-L2720DW MFC-L2685DW MFC-L2740DW

Available on Amazon

Valuetoner Compatible Toner Cartridge Replacement for Brother TN660 TN-660 TN630 TN-630 High Yield to use with HL-L2300D HL-L2320D HL-L2340DW HL-L2360DW MFC-L2720DW MFC-L2740DW DCP-L2540DW (4 Pack)

2600
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HL-L2300D HL-L2305W HL-L2315DW HL-L2320D HL-L2340DW HL-L2360DW HL-L2380DW DCP-L2520DW DCP-L2540DW MFC-L2680W MFC-L2685DW MFC-L2700DW MFC-L2705DW MFC-L2707DW MFC-L2720DW MFC-L2685DW MFC-L2740DW

Available on Amazon

Valuetoner TN 225 Compatible Toner Cartridge Replacement for Brother TN225 to use with HL-3140CW HL-3180CDW HL-3170CDW MFC-9330CDW HL-3150CDN Printer (Cyan, 1 Pack)

2200
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HL-3140CW HL-3150CDN HL-3170CDW HL-3180CDW MFC-9130CW MFC-9330CDW MFC-9340CDW DCP-9020CDN

Available on Amazon

Valuetoner TN 221 TN 225 Compatible Toner Cartridge Replacement for Brother TN221 TN225 to use with HL-3140CW HL-3180CDW HL-3170CDW MFC-9330CDW HL-3150CDN Printer (Cyan,Magenta, Yellow,3 Pack)

2200
Page Yield

Color

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HL-3140CW HL-3150CDN HL-3170CDW HL-3180CDW MFC-9130CW MFC-9330CDW MFC-9340CDW DCP-9020CDN

Available on Amazon

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