- IT Support
The Ultimate Guide to IT Support SLAs for Small Businesses
11 Mar, 2026





£91.21 inc. VAT
AI-generated summary
At £75.36 ex-VAT for an original Brother magenta TN-421M, you’re paying for predictability: good print quality, reliable colour, and less messing about with “compatible” toner issues like streaking or uneven coverage. If your office relies on colour accuracy (reports, marketing-ish internal docs, branded templates) and you’d rather not troubleshoot print quality every time you change a cartridge, this is the kind of straightforward spend that tends to pay off in time saved and fewer surprises.
That said, it’s not a bargain. If you’re mainly printing rough drafts, invoices, or black-and-white work with occasional colour, you’ll feel the cost quickly—especially if your printer isn’t used heavily, because toner value is mostly about consumption. I’d buy this only if (1) you’re confident it matches your Brother model exactly, and (2) you print colour often enough to justify OEM pricing. If you print magenta rarely or you’re cost-sensitive, you may be better off comparing against reputable non-OEM options—just don’t expect “set and forget” colour consistency every time.

Xerox
Xerox VersaLink C605 - Cyan - original - toner cartridge - for VersaLink C600, C605

Brother Supplies
Brother LC125XLC - Super High Yield - cyan - original - ink cartridge - for Brother DCP-J4110DW

Canon
Canon PFI-4100 GY - 80 ml - grey - original - hanging box - ink tank - for imagePROGRAF PRO-1100

Brother Supplies
Brother TN247BK TWIN - 2-pack - High Yield - black - original - toner cartridge - for Brother DCP-L3510CDW, DCP-L3517CDW, DCP-L3550DW, MFC-L3730CDN
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