Both of my argb fan hubs are powered by sata and can be connected to the motherboard for argb sync. So is it safe to connect both of them to a single argb port using a splitter cable? As i have only one port available
Make and model of your motherboard, the ARGB hubs and the devices you've paired with the hubs? There's a limit to how many devices you split from the header of your motherboard and that limit is mentioned in your motherboard's manual or specs page.