The 2 port version has been sold out for awhile and seem to be only available from some random third party resellers right now. Mostly in the "used" style market from individuals vs. retail. Will be keeping an eye on these two and any updates from CalDigit on the TS3 Plus firmware.
$300 DOCK190USZ (2 port version):
https://us.targus.com/products/usb-c-universal-dv4k-docking-station-with-100w-power-dock190usz
$400 DOCK570USZ (4 port version):
https://us.targus.com/products/usb-...ng-station-100-watt-power-delivery-dock570usz
$300 DOCK190USZ (2 port version):
https://us.targus.com/products/usb-c-universal-dv4k-docking-station-with-100w-power-dock190usz
$400 DOCK570USZ (4 port version):
https://us.targus.com/products/usb-...ng-station-100-watt-power-delivery-dock570usz