Nope, the 'original' Banana Pi (M1, Pro, M1+) uses another SoC. That one is SATA capable: http://linux-sunxi.org/Banana_Pi
Alsmost everything a cheap SBC can provide depends on the SoC in question. The A20 has somewhat limited SATA capabilities (write performance limited to 40-45 MB/s for yet unknown reasons), the A83T has no SATA and no mainline kernel support and SinoVoip uses an old USB2-to-SATA/PATA bridge. Given they would use something reasonable and not the GL830 and given that there would be mainline kernel support for the SoC used (both not true) you would be able to reach 40/40 MB/s read/write: http://linux-sunxi.org/USB/UAS
But there is no UAS support due to missing mainline kernel support (I suppose it will never happen that the A83T will be fully supported since this SoC isn't worth a look) and the GL830 is a bad choice (the Orange Pi Plus also uses the same bridge and performance numbers are really bad: http://www.orangepi.org/orangepibbsen/forum.php?mod=viewthread&tid=286 and they will be even worse on the M3 since there the chip is behind an internal USB hub!)
The XU4 has USB3.0 and is able to reach 150 MB/s, so in reality that's 5 to 6 times faster than the M3's USB2-to-SATA implementation.