@Jeff Kay Hi, thanks for your good advise. I add the UPS board and 18650 battery holder on X829-C1, the cooling fan is assembled on the side of case. X829-C1  is only for X829

@William Shelnut You can use multi X835 board to stack them, we don't announce that X835 is stackable because we are customizing the USB 3 cable ^_^, in fact, X835 is stackable. BUT you need to DIY...

@William Shelnut Don't use X835 with X828, they use the different voltage, please refer to Power Requirement

Hi Alexia Thanks. 1. X835/X835 is only for 3.5 inch HDD, and X835/X835 require DC 12V, BUT x828/x829 is for 2.5 inch SSD/HDD, so don't use them together. 2. X829 and X828 cannot be mixed, x828 s...

Hello, I have 4 HDD: 1x 3.5 2x 2.5 1x 2.5 USB (some weird none SATA connector sadly)   Is it possible to stack them with these products: https://geekworm.com/collections/new-arriv...

Hi all, I plan to mount a 4GB Raspberry Pi 4b with two 2,5" HDD (1TB + 500GB) that I currently own. I intended to go for your full Raspberry Pi 4 Model B+2Pcs X828 2.5" SATA HDD/SSD Cluster Stora...

Thanks for the pic, right now i'm just waiting for the new X835 to arrive. My Pi4 system is stacked from bottomto top as follows X828 (1Ea) (and 1 Waiting for new SSD) then the PI 4 then the X735 p...

@Joseph Bodhorn realized after I added a second comment to my own post that probably burned the wrong backup to the disk I was using, uname - a is now "Linux retropie4 4.19.97-v7l+ #1294 SMP Thu J...

@Joseph Bodhorn with batteries in and the jumper set to auto on my pi 4 won't boot after a full shutdown, reboots still work fine. No matter how long I hold the power button down the led's on the x...

@William Shelnut can't speak on the 835, I just got my boards yesterday and I had to get creative using both an 828 and a 750 on my pi 4

I've added the jumper for the auto power on function and my pi 4 now reboots just fine. I'm having an issue with starting the pi after a full shutdown. The pi does not want to start after being shu...

Has anyone been able to stack the X828 2.5 SSD board on top of the X835 3.5 HDD board?

@Harry Huang I did just that and rerouted it to GPIO 27.  It works but I think I will use other methods to shut down the pi as you mentioned.  thanks

@Bill Bigbee-Hansen Hi, how does your 3D print box like? Maybe you can share some photos, thanks!

Hi, You can cut the GPIO 18 cable from X750, and GPIO 18 is only for the shutdown of pi, thus you don't use the x750off to sofrware shutdown (In fact, we rarely use this shutdown command).  

I am trying to combine the X750 UPS on a Raspberry 4 B along with an adafruit 3.5" touchscreen.  An issue is that both devices use GPIO 18 and a couple of more pins.  I have changed the s...

Have you thought of 3d printing a box.  I have a Raspberry PI 4, the X750, and a 3.5" display for which I printed a box.  There is a cooling fan mounted on the lid as well. 

Hello sir, Now we ship to US via 4PX by USPS, when the package arrived at your country, the tracking information will update at the USPS, before that you can track the package via 4PX tracking num...

I am interested in the X830 board for RasPi3+, but, I don't know what SHIPPING type will be acceptable. I would like  a "quote" on these 2(two) items: 1(one): Raspberry Pi 3B+/3B X830 V2.0 ...