Used Core i5 6400 2.7GHz Quad-Core Quad-Thread CPU Processor 6M 65W LGA 1151 - AliExpress
Here's my Dell Optiplex 7040, started life as an i5 6400 Inspiron 3650. Slowly upgraded piece by piece to what it is today. It's sporting an i7 6700, GTX 1650 Super, 32