“Good product, but it has issues.
Do not use WD Blue SN580 Controller SSDs, they will not reach full PCIe Gen 3 speed. The most you will get is around 400 MB/s. Stick with Samsung SSDs, where you will average around 850-900MB/s.
As with other comments, it is a little power hungry. The Pogo Pins are a PAIN! You will get the dreaded UnderVolting throttling problem if you do not use a RPi 5 PSU. I ended up cutting the pins off, soldered wires and ran the HAT from another PSU. It really could do with an external power connector like some other M.2 HAT's do.
Running a Samsung 970 EVO SSD and a JMicron JMS585 5 Port SATA with 4 Seagate IronWolf HDDs set up as a NAS on this Dual M.2 HAT.”
“Lovely piece of kit. I've paired it with a Kingston NV1 256Gb NVME SSD and I'm amazed at how quickly everything moves. The Pi 5 boots pretty rapidly, even from the SD, but with this I'm up and running in seconds. I haven't bought the Hailo accelerator to put in it yet, but I'm definitely moving that to the top of my wishlist. Seriously contemplating the Pi as a daily driver now, I just need need to adapt the case model that Seeed provide on their website so that it will take my Waveshare port adapter.”
“Wanted to mount both a Hailo processor and SSD with the option to run at PCIE 3.0 speeds. This fit the bill and works as advertised.
Downsides are that it's a little power hungry even with just a single SSD and it's very fiddly to install. The pogo pins (used to pull extra power from the pi) didn't always seat properly for me and the link cable is short and awkward. Trying to remove from one pi and get it fitted to another ended up with a broken pcie connector and defunct board.”
“Excellent bit of kit. Pulls power from the Pi's GPIO using pogo pins. Used in conjunction with a couple of Lexar NM620 2TB SSDs. Had some initial problems with the Pi reporting low voltage. My fault entirely! Replaced the PD charger I was using with the Pi 27W PSU which has addressed the issue.”
“The pictures on the wiki are not the clearest (every fixing appears to be white in the pictures, but helpfully, the ones in the packaging were different materials/colours.
Nice there is also spares of everything.”
“Does work but awkward to install and high power consumption.
Instructions on Seeed wiki don't match the contents delivered. The wiki shows some short nylon spacers which you thread screws through to secure to the base standoffs. Actual pack was missing nylon spacers but instead had metal spacers with a stud and tapped hole, did still have the long screws but they don't seem to have any use. End result is OK, but fiddly to install. Especially since there are some tiny spring loaded studs which have to exactly match up to the base of the Pi GPIO power pins.
Main issue though is power consumption. Pi-5 with Pimoroni base and one NVMe drive draws around 0.5A when fully booted and quiet with no GUI. Same NVMe drive using this base draws over 0.9A under the same conditions, nearly doubling the power consumption! Since this was meant for a battery-powered application that's disappointing.
To be fair if you are then going to install a Hailo-8L as well, a prime use for this base, then maybe you aren't so power conscious and it does work at the speeds advertised. So maybe 3* is a little harsh but can't bring myself to give 4* for something so unexpectedly power hungry.”
