Failed to read CSW: USB_ERR_STALLED

Hi, I have a PowerMac G5, and a 4-bay USB3 enclosure. Until a few days ago I was using it as a USB2 device with ZFS and everything worked fine (at least in terms of functionality). After one disk failed, the resilvering of a new one was taking a very long time so I put an Iomega USB3 card

Re: Failed to read CSW: USB_ERR_STALLED

Here's the beginning of dmesg: Copyright (c) 1992-2013 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD