5 components that define the performance
- CPU (and cooler)
- Storage (SSD/HDD)
- full tower
- mid tower
- Wireless Card
Accessories and Peripherals
- Keyboard + mouse
ESD Wrist Straps
- USB4: spec ready, adoption expected to start from 2021. Thunderbolt 3 will become part of USB 4 standard.
- PCIe 5.0: introduced in 2019, mass production in 2020
- PCIe 6.0: planned to be introduced in 2021
The current generation is Wifi 5, or IEEE 802.11ac
The next generation is Wifi 6, or IEEE 802.11ax. You would need BOTH Wifi 6 routers AND Wifi 6 devices to take full advantages of it.
- Wifi 6 is faster than Wifi 5, but may not be that obvious.
The true difference is that Wifi 6 can support more devices
- MU-MIMO, or "multi-user, multiple input, multiple output", is upgraded from 4 devices to 8 devices
- OFDMA, or "Orthogonal Frequency Division Multiple Access", allows one transmission to deliver data to multiple devices at once.
- Improve battery life, especially for low-power, IoT devices.
- Better security: WPA3
Wifi 6 adoption is going up. Now high end devices, like iPhone 11+ and iPad Pro, are supporting Wifi 6.
Some motherboards have Wifi chips built-in, otherwise you can buy a PCIe Wifi card or USB Wifi Adaptor
- M.2 replaces mSATA
- SATA replaces PATA
- DisplayPort and HDMI replace DVI and VGA