This product is discount for sale at Half price Before 2022's Christmas Day from China Electronic Store, 

purchase to visit:  Sellholy.com

Basic parameters
Time to market: March 2013
Product Type: Household
Product positioning: light portable this
Operating System: Mac OS X Lion
Processor
CPU Series: Intel Core i7-generation Series
CPU Type: Intel Core i7 3740QM
CPU frequency: 2.7GHz
Core frequency: 3700MHz
Bus Specifications: DMI 5 GT / s
Three-level cache: 6 MB
Core types: Ivy Bridge
Core / thread: quad-core / eight threads
Process technology: 22nm
Instruction set: AVX, 64bit
Power consumption: 45W
Storage devices
Memory capacity: 16GB
Memory Type: DDR3 1600MHz
Maximum memory capacity: 16GB
Hard disk capacity: 512GB
Hard to describe: SSD Solid State Drive
Drive Type: No built-in optical drive
Display
Screen Size: 15.4 inches
Screen ratio: 16:10