take your pick.

They don't work with Cisco CSS load balancers. They need a real serial port, not USB-serial.

Not to start a fanboy flamathon, but Apple Mac laptops have had built-in display calibrators for years.

Indian security doesn't want you to take pictures of Boeing and Airbus airplanes up close for "security reasons." I've never had problems taking picures of airplanes anywhere else in the world. I've been to India, and had it happen to me, personally, on multiple occasions.