How much does this cost to the nearest dollar?

ET-3 III Communication Diagnostic Adapter Diagnostic Tool 6 pins line and 9 pins line,Diagnostic Test Version for Heavy Equipment
Product Number Ideal replacement Precision-engineered to match the fit and performance on specific vehicles. Cost effective and reliable Trustworthy manufacturing for far less than same part at the dealership.. Easy to install You can install quickly and easily through replacement. Ensure fit To make sure this part fits your exact vehicle. Manufacturer otobaijeni, Brand Otobaijeni, Model Communication Diagnostic Adapter Diagnostic Tool, Weight 3.57 pounds, Dimensions 18 x 10 x 5 inches, Country of Origin China, model number Exterior Machined, Manufacturer Part ET-3 ET-III, OEM Part Rank Automotive Code Readers & Scan Tools 3126, Available December 7

Price is $310.00
Price: $309.59