The Radeon RX 5600 XT Phantom Gaming D3 from ASRock is 290mm long but this is because the card uses an oversized cooler. The PCB itself is much shorter.
The Phantom Gaming D3 is equipped with three DisplayPort 1.2a connectors and one HDMI 2.0b. There is only one 8-pin power connector, so this is a distinctive feature compared to RX 5700 Phantom (which has two connectors).AMD is expected to introduce the Radeon RX 5600 XT later this month, presumably at next week's CES show in Las Vegas.