Skip to REVIEW for a regular review. ORICO Daisy Chain 4 Bay Hard Drive Enclosure (Model 9948C3) uses a VL817 chipset which appears to have a buggy UAS implementation (in my own observations and other reports online, including LKML). Under heavy and sustained write loads, drives are prone to drop from the USB bus (including loss of drive status LED on the enclosure itself) until the enclosure power is reset (not just a host reboot or unplug/replug). Disabling UAS reduced my drive throughput, while greatly improving stability. The amount of performance reduction will depend on your workload. The device is still detected at 10Gbps - the loss in performance is due to the overhead of older, sequential BOT vs. the newer UAS protocol. Disabling UAS on Ubuntu Linux (as root): `echo options usb-storage quirks=2109:0715:u >/etc/modprobe.d/ignore_uas.conf; update-initramfs -u`. Instructions for Windows can be found online. Ubuntu Linux 24.04.1 LTS 6.11.0-24-generic #24~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC x86_64 REVIEW Despite the buggy firmware described above, I'm still keeping this device as it meets my needs in a way that no other devices on the market would otherwise (Amazon US, Apr 2025) . I don't need to put 12 SATA SSDs behind a single USB port often... in fact needing to do so is extremely rare. But that's what I need today due to a large data migration. I could get by with multiple enclosures and a USB 3.2 hub, but the integrated hubs on these devices are quite conveniant. I opted for USB enclosures over SATA/SAS for the flexibility. Once this data migration is done, I'll be left with three decent USB-SATA enclosures that I can use on their own, or re-combine in the future. My expectation is that they would be stable (even with UAS enabled) when used for normal desktop or read-heavy workloads, requiring no special configuration. I have no complaints about build quality, or even the plastic trays. At this pricepoint, the build quality exceeded my expectations. The power button is a physical toggle button that depressed when "on", and therefore will come back online after a power outage (unlike at least one other device in this category). Least important to me (but most important to my wife) - These three enclosures look real nice stacked beside a GeekPi 10in rack. Read more

Hardware seems fine, not really stressing it out so far. The only technical issue so are is that the first drive bay (top) does not work when hot swapping, only when turning on the enclosure with the drive installed. The other issue I have is that the product came already opened. Do not know if it was a return for hardware issues or not fitting the previous owners needs. That combined with the enclosure being $30 cheaper the day after I received it drops my rating by a star. Read more

I recently got the ORICO Daisy Chain 4 Bay Hard Drive Enclosure (9948C3) for my M4 Mac, and I’ve been really impressed with it. The build quality is top-notch—solid aluminum construction that feels durable and looks sleek, easily a 10/10 in design. Setup was a breeze, super straightforward even for someone who’s not super tech-savvy. It’s been working flawlessly with my Mac, handling everything I throw at it, so I’d rate its performance a 10/10 too. For Mac users, I’d definitely recommend turning off the “put hard drives to sleep when possible” setting in System Preferences. I also found that giving the machine a restart after connecting helps keep things running smoothly, especially when using resource-heavy apps like Blender and Lightroom. It’s fast, reliable, and the USB 3.2 Gen 2 speeds are noticeable—great for managing large files. With support for up to 22TB per drive and expansion potential to 264TB, it’s a powerhouse for storage needs. Highly recommend this for anyone looking for a dependable DAS enclosure! Read more

If you don't mind tiny drive indicator lights, this is an easy setup, and worked solidly as a drive chassis. If I needed this still, I would buy one again in a heartbeat. Read more

I have this connected to a Mac mini M4 but running a ZFS storage pool under a Ubuntu Parallels VM and it has been working great. I was a bit worried when I saw some other reviews about potential instability. But for my use case or archiving media, it has worked well so far for the couple of days that I've had it and have been using it heavily. It's quiet, the build quality is great, the daisy chain option is a nice bonus, and the built-in power supply is great. Read more