XO-1 Laptop model CTest-2, also known as C2.
This is the laptop model that started production in November of 2007. The official Quanta model number for it is CL1.
This version is sometimes ambiguously referred to as MP, as in "Mass Produced". It is a mass produced version, but is not the only such.
- All outer surfaces textured
- Antenna latch is a moving element with a spring behind it
- Label underneath says "Model: XO-1"
- Application of any reverse DC voltage to the microphone input will cause damage