How much does this cost to the nearest dollar?

4GB KIT 2X 2GB for Acer Aspire X3910 X3950 DIMM DDR3 Non-ECC RAM Memory
4GB KIT (2 x 2GB) DIMM DDR3 NON-ECC RAM Memory Genuine A-Tech Memory Lifetime Warranty Designed For Acer Aspire. (See Compatibility List Below) RAM 4 GB DDR3, Brand A-Tech, model number Weight 2.4 ounces, Dimensions 6.7 x 3.6 x 0.4 inches, Dimensions LxWxH 6.7 x 3.6 x 0.4 inches, Computer Memory Type DDR3 SDRAM, Manufacturer A-Tech, Available July 25, 2014, Rank Computer Memory 18454, Computer Memory

Price is $48.00
Price: $47.87