nope, sata connectors are rated for 54W but how much they can actually do depends on the gauge of the wire they are connected to. 18 AWG is pretty common for more reputable brands, those cables can support 2 risers per cable. 20 AWG is pretty common for cheap PSUs, those can only do 1 per cable.

Also, unless you have an actual way to measure the power draw from the pci-e slot, you should always provision for at least 75W per each.