HL-2460 and HL-L5100DN share specifications such as Printer Functions (Print), Print Technology (Laser), USB (Yes), Product Brand (Brother).
The main differences: Black Print Speed A4 (HL-2460: 24 ppm, HL-L5100DN: 42 ppm); Print Resolution (HL-2460: 2400 x 600 dpi, HL-L5100DN: 1200 x 1200 dpi); Automatic Duplex Printing (HL-2460: —, HL-L5100DN: Yes).
HL-2460 may suit users who need its differing values, while HL-L5100DN benefits those who need its paired strengths. Review the specs table above before deciding.