The best cash registers on the market today hands down are the SAM4s SPS-520 and SPS-530 series

SAM4s has a produced a hit with the SPS-520 and SPS-530 series cash registers. These machines are true Hybrid  between cash registers and POS systems. Features include

• Color Touch Screen
• Easy and affordable add-on memory
• USB port allows user to produce a back up file
• Keyboard port for entering descriptors
• Optional Graphic Rear Display
• Credit Card Interface
• Gift Card Interface 
• Scale Interface
• PC Interface
• Kitchen Printer Interface

The models include

• SAM4s SPS-520R or SPS-520RT
• SAM4s SPS-520F or SPS-520FT
• SAM4s SPS-530RT or SPS-530R
• SAM4s SPS-530F or SPS-530FT