The wpl305 prints at speeds up to 5 inches per second at 203 dpi print resolution ships standard with two megabytes of operating dram one megabyte of flash memory with parallel usb rs232 connectivity easy installation and media loading will have you printing in minutes direct thermal and thermal transfer printing abilities perfect for businesses that need to create barcode labels for multiple purposes wpl305 thermal printers are ce fcc tuv and ul certified optional upgrades such