The GfG Instrumentation docking station is packaged 1 each and is for use with G450/G460. Has 2,000,000 records of memory. Dimensions for this product are 9 in x 5.1 in x 4.7 in. GfG Instrumentation covers this item with a 1 year warranty. This product comes with the following: Computer interface cable, Single-type cradle, Software, 2 GB SD memory card, 100-240 VAC power supply.