Although if these are high speed connections, you will still want to use junction diodes -- less capacitance. A packaged TVS array would be fine, it'll just have a superfluous TVS part inside (typically 5V). Connect it to supply and put a bypass cap directly beside.
There will be some let-through which may still be a concern, especially on low voltage IOs. Add a series resistor, between TVS and IO pin, as large as you can afford (10s of ohms to a few k?).
The better question is, what the bloody hell are you doing, bringing CPU internals out to a connector?! Level-shift those up to 3.3V or more, if at all possible. Use LVDS if it's fast.
I know there are some MCUs and low power devices down there, which might be expected to see ESD, while also not being very fast. But still, even just the noise margin there is pitiful. You'll need coax to bring those signals any distance over a cable!
Tim