Targeting 3.5 is smart. So much storage potential and can still handle 2.5 and ssd. However, I want to note that initial spin up is a high current load so the board parts and tracks need to be rated for more amps than runtime (not a hw engineer, this is what somebody associated with zima has led me to believe in a related context). So if you provide more than one path of power, make sure all paths to power the device have current limitations which suit the resiliency of the build. (Zima depends on usb c current limiting, the 12v DCin bypass it unfortunately)
Spin up voltage is more hdds. SSDs draw most under load. Not a great deal for satas and since the nvme here only uses one out of 4 lanes on the nvme ssd I doubt it’ll ever hit full draw
I’ve attached 4x nvme and a sata to a n100 board without issues.
None of it matter though cause you hit network limitations before anything else with ssds
I'm all ssd too and surprised by how toasty warm they are. I guess flipping state costs energy which dissipates as heat.
My point just was that a device targeting other people has to meet other people's situations and they may exceed yours or mine. If you put a design out, the limits have be understood.
Targeting 3.5 is smart. So much storage potential and can still handle 2.5 and ssd. However, I want to note that initial spin up is a high current load so the board parts and tracks need to be rated for more amps than runtime (not a hw engineer, this is what somebody associated with zima has led me to believe in a related context). So if you provide more than one path of power, make sure all paths to power the device have current limitations which suit the resiliency of the build. (Zima depends on usb c current limiting, the 12v DCin bypass it unfortunately)
Spin up voltage is more hdds. SSDs draw most under load. Not a great deal for satas and since the nvme here only uses one out of 4 lanes on the nvme ssd I doubt it’ll ever hit full draw
I’ve attached 4x nvme and a sata to a n100 board without issues.
None of it matter though cause you hit network limitations before anything else with ssds
I'm all ssd too and surprised by how toasty warm they are. I guess flipping state costs energy which dissipates as heat.
My point just was that a device targeting other people has to meet other people's situations and they may exceed yours or mine. If you put a design out, the limits have be understood.
relevant with more details about actually laying out the pcb https://hackaday.com/2025/08/12/design-review-lattepanda-mu-...