X86-Secret : ES Zone
NG80386 SX-25 ES  (Week 05, Year 1992)   
NG80386SX-25 - C2050486 - STD SAMPLE - (m)(c) '85'87

This Engineering Sample is based on the second-gen High Speed CHMOS IV (0.1 ┬Ám) process. Clocked at 25 MHz, it uses a 100-pins Plastic Quad-Flatpack Package (QFP) for SMD soldering.