You ain't gonna get a sound card in there, so you need to look for an external system that connects via USB or FireWire. Yes, you need ASIO and MIDI.

There are loads of these on the market. M-Audio have a good reputation.

http://www.m-audio.com/index.php?do=products.family

Maybe consider getting an all in one Keyboard / Audio / Midi ?

---

Windows 10 x64 Pro - Intel Xeon E5450 @ 3.00GHz (x2)

PoserPro 11 - Units: Metres

Adobe CC 2017