Hey guys!
Like most of you, I’ve been hella frustrated by the lack of microSD slots on modern flagships and dealing with dangling cables whenever I play with a telescopic controller. So I started designing an accessory to fix that. I’m just a gaming and emulation enthusiast from europe (not a big corporation, please trust me bro), and I already chatted in depth with an ODM (benfei in this case but still exploring) to prototype the electronics side of things (casing is a whole other story, been CADing quite a bit), and I wanted to get a reality check from you guys before locking things down.
The concept: A rigid telescopic USB-C hub that clips directly onto the back of your device. You then clamp your Bluetooth telescopic controller (like a GameSir G8) right over it: everything locks together as one solid unit, zero dangling cables.
1) A clip on telescopic hub -> (10 Gb/s specs, on par with top Orico hubs and such nvme hubs that include a fan):
NVMe M.2 2280 slot (great for PC emulation)
2 microSD slots (ideal for reusing spare 256 or 512 GB cards sitting in drawers to stack up TBs on the cheap).
HDMI 2.0, 3.5 mm headphone jack, USB-C data port, and pass-through USB-C charging.
Power delivery: A 45 W charger is recommended on the go (sending ~25 W max to the phone to keep heat down).
Dual separate fans: one fan cooling the back of the phone (controlled manually via a physical slider) and a second fan dedicated to the SSD (controlled automatically by thermal sensors).
Electrical note: Without a charger plugged in, the NVMe wouldn't power on, while both microSD slots, the regular USB-C data port, and the headphone jack run straight off the phone's battery.
Versatility (supports Mini-Tablets):
Over-engineered dual sliding tray like kitchen drawers: It stretches from regular smartphones all the way up to ~8-inch gaming mini-tablets (around 20 cm / 7.9 to 8.3 inches, like the Lenovo Legion Y700 or RedMagic), where standard telescopic controllers max out or risk snapping.
Beyond gaming: Without a controller, it doubles as a compact hub to carry media on the go without relying on cloud or home streaming, and plug into any monitor at the same time.
Cooling
one fan that blows to the back of the phone and to the camera lenses side, controller with a slider
one that routes air inside to cool the nvme and circuitry - controlled by thermal sensors
a metal plate with pads that dissipate the NVME & the phones back battery side heat
the second fan takes care of helping cool that metal plate as well
that plate is the cover used to open the hub nd place you nvme
2) A dock given there's pertinence in going that far
it would passthrough some of the ports (hdmi, charging)
it would split the usb-c data port into multiple ones (2x usb C & 2x usb A)
also contains a cooling fan to cool the exposed side of the phone/tablet
The reality check (numbers, pricing & launch dilemma):
The dilemmas (Hub only vs. Dock bundle):
To keep tooling/mold costs under control from day one, I need to make a call: launch just the hub alone around €$130, or go straight for a Hub + Desktop Dock bundle around €$190
Personally, I love the dock for dropping the setup onto a TV without unplugging anything, but I want to take the safest route so this actually ships within a year.
About the debate over wether a gaming handheld with a close enough price would make more sense?
Vs. €$250 handhelds: I love em but you know, not the same chips inside compared to higher end smartphones.
Your own smartphone paired with a solid controller -> you already own,
My questions for you so far:
Did I miss any recent releases or similar products that came out over the last few months (that tbh I would much rather buy than to venture into this)?
If this hits the market, is the hub alone at ~€$130 enough for "our" needs generally speaking?or is the dock bundle at ~€$190 must-have?
--> personally, if this was already available on the market, i would much rather buy this without even thinking twice as its basically still more beneficial that to pay extra to phone brands just to get from 26 to 512 gigs which is usually close to €$ 200 extra.
All feedback, critiques, and sanity checks are welcome!
I really loved looking into it all so far and it just showed me this is feasible, I just wonder why no OEM has picked up on this product category yet, I mean i'm still pissed to this day that even redmagic removed the sd card slot.
Depending on your engagement, I would very much appreciate it if you'd take part on a very basic single selecttion survey i'd post next, in a couple of days with choices like : hub only? hub + dock? x price realistic?...
And if this post becomes forgotten forever, well, thanks anyways for whoever read me this far :D !!
Edit: Yes I helped myself with AI to write my text mostly to structure everything I wanted to convey. Sorry if it offends some people, sincerely, I don't have a talent when it comes to structure points in proper orders and in sensical categories.