Lexmark OPTRA Memory - 4 MB 4GB memory module

OPTRA Memory - 4 MB Do you want your printer works with all possible power? This memory upgrade option from Lexmark will dramatically enhance the productivity of your printer, broad the scale of its additional options and reveal its hidden, underestimated power, so it seems you've just bought another one.Boost your printer memories up to 6 MB with a 4 MB optional memory module.
Optra E Flash, Optra EP, ValueWriter 300 (4037-5E), WinWriter 200, WinWriter 400, WinWriter 600, 4029-xx.