- AI
AI Strategy for UK SMEs
20 Mar, 2026






£19.54 inc. VAT
AI-generated summary
Brother’s LC521BK is a pretty sensible choice **if you’re already running a compatible Brother inkjet** and you just want reliable, consistent black without gambling on cheap refills. At **£16.28 ex‑VAT**, it sits in the “reasonable” bracket for genuine ink—especially in an office where you print steadily enough that you’re not repeatedly dealing with ink drying out or clog-prone downtime. The big win with genuine cartridges is predictability: fewer print-quality surprises (banding, weird text), and less faff when you need it to work the first time—every time.
That said, it’s **not great value** if your usage is light or sporadic. Inkjets tend to penalise low-volume printing, and if you’re effectively printing a few pages here and there, you may end up paying for cartridges more often than you’d like. Also, despite the “LASERSUPP > Toner Cartridges” label you mentioned, this is an **ink cartridge**—so make sure you’re buying the right format for your machine, otherwise it’s wasted spend. If you tell me your Brother model number and roughly how many pages you print per month, I can give you a clearer “buy vs consider alternatives” take.

Xerox
Xerox - High capacity - black - original - box - toner cartridge - for VersaLink C625, C625V_DN

Brother Supplies
Brother LC127XL Value Pack - 4-pack - high capacity - black, yellow, cyan, magenta - original - blister - ink cartridge - for Brother DCP-J4110DW

Brother Supplies
Brother LC427C - Cyan - original - ink cartridge - for Brother HL-J6010DW, MFC-J5955DW, MFC-J6955DW, MFC-J6957DW

Xerox
Xerox - Magenta - original - toner cartridge - for VersaLink C7120, C7125, C7130