Realtek showed off its RTS5490 "hub router controller" at Computex, which is also a released USB4 hub IC.
The RTS5490 supports 40 Gbps speeds and contains one upstream port and four downstream ports. It's also backwards compatible with Thunderbolt 3 and USB 3.2 Gen 2x2 (20 Gbps), as well as slower USB standards. It also supports the USB PD 3.1 standard, so the dock can deliver up to 240W of power to a connected laptop.
It also natively supports DisplayPort 2.1 Alt mode and UHBR20 DisplayPort signals up to 80 Gbps. Since there's only an older MST controller on site, it's limited to demoing DP 1.4 signals, but hopefully some company is developing a DP 2.1 MST controller, as that would require splitting DP signals from USB-C to a physical port.
.Interface:Type-C/USB 4/TBT3/USB 3.2/DP2.1
Type-CV2.2 and USB Power Delivery 3.1
.USB 4.0 Gen3x2 (up to 40Gbps)
.Thunderbolt-3 Gen3x2 (up to 40.625Gbps)
.USB 3.2 Gen2x2 (up to 20Gbps)
.Supports DisplayPort 2.1 Alt Mode
Built-in DP2.1 TX and RX Port (up to UHBR20 80Gbps)
.Built-in USB 2.0 Hub Controller
Purplelec uses the RT5490 chip to launch a 6-in-1 USB4 hub docking station that supports the PD3.0 fast charging protocol. All USB interfaces use U disks, mobile hard drives, wireless mice and other related USB storage devices to transmit data to computers and mobile phones.
