We know 6 variations of the Longer LK5 Pro with the above specifications:

LGT LK5 Pro 3D Printer Upgraded with Dual Blower Kit, Large Print Size 11.8"x11.8"x15.7"(300x300x400mm), Open Source, Removable Lattice Glass Platform, Diagonal Rod and Resume Printing, DIY
For $345.99 on Amazon (As of Feb 21, 2025, 19:40 PST - Details)

Longer LK5 Pro 3D Printer, FDM 3D Printer with Large Build Size 11.8x11.8x15.7in, 95% Pre-Assembled, Fully Open Source, Resume Printing, Silent Mainboard. Ideal for DIY Home and School Printing
For $269.95 on Amazon (As of Feb 21, 2025, 13:26 PST - Details)

Longer LK5 Pro 3D Printer, Large Build Size 11.8''(L) x11.8''(W) x15.7''(H), 90% Pre-Assembled, Silent Motherboard, FDM 3D Printers for DIY Home and School Printing
For $332.99 on Amazon (As of Feb 21, 2025, 13:26 PST - Details)

Longer LK5 Pro 3D Printer Fully Open Source Motherboard Upgrade to TMC 2209 4 Silent Driver, DIY for Families and Schools FDM 3D Printers with Large Print Size 11.8x11.8x15.7 Inch
For $369.99 on Amazon (As of Feb 21, 2025, 17:34 PST - Details)

Longer LK5 Pro 3 3D Printer 11.8x11.8x15.7in Large Printing Size FDM 3D Printer Fully Open Source Motherboard Upgrade TMC 2209 with Resume Printing 3D Printers 95% Pre-Assembled Ideal for Beginners
For $259.30 on Amazon (As of Feb 21, 2025, 13:26 PST - Details)

LK5 Pro 3D Printer, 3D Printer with 4.3" Color Touch Screen, FDM 3D Printers for DIY Home and School，Large Print Size 11.8"x11.8"x15.7"
For $279.99 on Amazon (As of Feb 21, 2025, 13:26 PST - Details)