looking to purchase used personal computer.

I am looking to purchase a used personal computer as per the following specifications:

Memory

RAM

4 GB

RAM Type

DDR4

RAM Speed

2400 MHz

Storage

Storage Size

1 TB HDD

Storage Type

HDD

Display

Screen Size

21.5 Inches

Processor

Intel Core i3

Speed

2.0 GHz

Please quote me the best price for a suitable USED PC that has the same above mentioned specifications.Thank you