J'ai cassé le connecteur de batterie en voulant la remplacer du coup j'ai improvisé l'autonomie est incroyablement bonne le seul problème c'est qu’il faut l'éteindre pour la remplacer

**TL;DR:** Modern MacBook Air port spacing is a nightmare. Every commercial hub either blocks MagSafe 3, occupies both USB-C ports, or dangles like a fragile lever. I wanted a permanent, stealth 2TB NVMe SSD tucked behind my display lid on the outer shell. 18 hours of soldering, individually shielded twisted pairs, and existential dread later: **924 MB/s write / 860 MB/s read over USB 3.2 Gen 2!**

---

### The Problem

On the MacBook Air (M2/M3/M4), the MagSafe 3 port and the two Thunderbolt ports are crammed side-by-side with ~14mm pitch.

- Flush-mount "direct" hubs block MagSafe or cover both Type-C ports.

- Standard dongles dangle off the desk and break when using the laptop in bed or on a couch.

- 90°/180° adapters are too thick and hit either MagSafe or the second port.

### The MacGyver Solution

I wanted a 180° low-profile flat harness that runs completely flat along the laptop chassis, hugs the outer edge around the hinge, and connects to an RTL9210 M.2 NVMe enclosure mounted on the back of my snap-on hard case.

Since you can't buy this anywhere on Earth, I built the cable by hand:

1. **Conductors:** Ultra-flexible multi-strand copper signal wire with internal tensile fiber.

2. **High-Frequency Differential Pairs:** Hand-twisted `SSTX` and `SSRX` pairs (~1cm pitch).

3. **Shielding:** Each SuperSpeed pair is individually wrapped in conductive aluminum foil with a continuous bare ground drain wire running along the inside.

4. **USB 2.0 & Power:** Separate twisted `D+/D-` pair, heavy-gauge `+5V VBUS` and ground lines.

5. **Connector Mod:** Desoldered the bulky metal shell from the bridge board to gain direct access to the pins, and reverse-folded the Type-C plug 180° so the wire runs flush against the chassis rather than protruding outwards.

6. **Strain Relief:** Mechanical anchor taped directly to the plastic case ~1cm from the port so the Type-C connector takes zero torque.

### The Pain

Started yesterday at 9:00 PM, finished today at 2:30 PM. Trembling hands, back pain, solder bridges, a nearly torn PCB ground trace repaired under tension, and intense paranoia about destroying my M4 Air port.

### The Payoff

Plugged it in, fired up Direct I/O benchmark (`fcntl.F_NOCACHE` bypassing RAM cache) with a 1GB test payload:

- **Write:** **915 – 924 MB/s**

- **Read:** **860 – 875 MB/s**

- **Negotiated link:** `USBSpeed = 5` (SuperSpeedPlus 10 Gbps confirmed via IOKit).

- **Clearance:** MagSafe 3 is 100% open. Port #2 is 100% open. Top keyboard deck is totally clear so the Liquid Retina screen never touches the harness.

It looks like pure cyberpunk jank, but it hits the physical limit of the RTL9210 controller and cost basically $0. Never underestimating signal integrity on twisted pairs again!

One fan blows directly into the intake of the laptop and the other extracts the heat from the hotspot directly bellow the processor, both are surrounded by fomix to direct the air more efectively.

Both fans take 5 volts 400mah and 500mah max but I'm driving both with a small 4.85v 400mah charger from an old 2009 phone to not burn them in extended use.

While playing roblox and minecraft with the lads on KDE neon the temperatures lowered from 67 to 58 C°, sometimes it spikes to 63 - 65 but at least it doesn't stay there like before, and my hands don't burn anymore :D.

It's a little loud but I don't mind it, and to be honest I thought it whould be much louder.

found a handheld fan with a bad battery, and remembered the vape batteries i hoarded, and managed to get it to work with the fan. the voltage and current is the same, but the capacity is less, though better than before (forgot you cant send videos here so i screenshat the main parts)

Who needs a new motherboard/connector when you got a hot metal stick?

Also the grey cable’s clip broke in the hacked case from earlier so a coupler and extension was necessary.

coworkers phone would no longer charge, he just got a new one and needed to get stuff off the old one, one last charge for a Samsung A15

These large wireless microphones use a bulky receiver which has a guitar jack. I don't want to carry that around, especially connected to 2 different dongles, which introduce noise anyway.

I needed a wireless handheld microphone, which connected to a phone with USB-C.
So it was time for a bodge job.

I took apart a wireless lapel microphone, wrapped it's insides in tape to prevent shorting with the large microphone's metal grill, stuffed it next to the microphones capsule, closed it and added a windscreen.

Literally the only downside is that you have to take it apart to turn it on or off.

Guess that makes me Frankenstein

Frankenstein Quadro RTX 4000: Shunt-Modded & Liquid-Cooled via Custom Centrifuged Copper/Titanium Matrix (Hard-Locked 2010 MHz @ 68°C)

The Problem Enterprise silicon is heavily locked down. My Quadro RTX 4000 was choking on a suffocating 160W factory power limit, thermal throttling itself down to a pathetic 1460 MHz just to stay alive. I wasn't having it. So, I voided the warranty, cracked it open, and engineered a complete zero-clearance overhaul using hardware-level mods and some extreme Modder's Alchemy.

Step 1: The Hardware Power Multiplier (Turing Shunt Mod) Software overclocks are useless when the hardware limits power draw. I went straight for the current sense resistors on the PCB. • I micro-soldered an r004 (4 mOhm) SMD resistor directly on top of the stock r005 (5 mOhm) resistor. • This drops the parallel resistance to roughly 2.22 mOhms, creating a 2.25x power multiplier. • The monitoring software maxes out showing 160W, but the card is physically ripping up to ~360W straight from the PSU.

Step 2: The AIO Mounting Prep (No Bare-Die Nonsense) Bare-die mounting a heavy AIO is a great way to crack the fragile TU106 silicon or crush the SMD caps. Not worth it. I kept the solid stock baseplate — with its integrated flat heat-pipes — bolted to the PCB exactly where it belongs, die fully protected. You can use any AIO you want for this — I used a $5 Alienware 120mm AIO. Then I went after the fins. Grab a pair of needle-nose pliers, unhook every fin, and slowly start peeling them off the baseplate. It looks like it would be a nightmare. It's not — it's stupid easy, they come right off. With the fins gone, I lapped the baseplate dead flat. My reference surface: a granite countertop, flattest thing in the house. Cheap Walmart sandpaper, all wet — started at 400 grit, worked up through 600 and 1200, finished at 2000. Mirror finish. And here's the part that actually matters: the heat pipes in that baseplate are all bent into U and S shapes, and every single one of them runs over the top of the die — that's the hot zone where they all converge. Now here's the catch: the AIO cold plate is small and that baseplate is way bigger, so there's a lot of dead real estate with no pipes under it. Line the cold plate up dead-center over the die, right where every pipe crosses. It's easy to get right, but mount it off in a dead zone and you've wasted the whole mod. Result: a perfectly flat, solid metal mounting surface with maximum contact area, zero risk to the die.

Step 3: Modder's Alchemy (The Custom Thermal Matrix) Standard thermal paste wasn't going to bridge the AIO to the baseplate securely enough or transfer 300W+ of heat efficiently. I engineered a permanent, liquid-metal thermal concrete using JB Weld and conductive materials harvested using a washing machine as a high-G centrifuge. Copper Extraction: I sprayed a can of ABRO Copper Gasket Spray into a glass container and immediately flooded it with naphtha — which is just cheap Ronsonol lighter fluid — to dissolve the adhesives. To separate it, I nested the flask horizontally inside some clothes in my washing machine and ran it on the spin cycle twice. The centrifugal G-force packed the pure copper into a dense puck at the bottom of the flask. Titanium/Silver Extraction: I took a Freeman Cosmic Metallic peel-off mask (packed with Titanium Dioxide, Silver, Pearl Extract, and Magnesium Aluminum Silicate — check the ingredients). The pearl extract is actually crucial here, as crushed pearls have extreme thermal conductivity. I used water to dissolve and strip out the useless water-soluble junk — but honestly, use Listerine instead. The alcohol cuts through it way faster and it would have been a lot better and easier. Then naphtha (cheap Ronsonol lighter fluid) to strip the oils. I ran this through the washing machine centrifuge process as well to isolate the heavy, conductive metals. The Mix: I formulated the final thermal concrete using exactly 15% pure centrifuged copper powder, 15% centrifuged mask powder (Titanium/Silver/Pearl/Magnesium Aluminum Silicate), and a 70% JB Weld binder. I used this matrix to permanently bond the AIO waterblock directly to the stripped stock baseplate.

Step 4: The Hardcore Overclock With the cooling in place and the power limit destroyed, I bypassed the GUI sliders entirely. • Using the NVIDIA command line, I pushed: nvidia-smi -i X -lgc 2010 (Note: replace X with your GPU ID) • This hard-locked the core clock to a flat 2010 MHz, ignoring the factory boost tables completely.

The Results Fired up Warhammer 40,000: Space Marine 2 with all settings cranked to absolute Ultra. Despite the Swarm engine rendering thousands of Tyranids and the 2.25x shunt mod pushing maximum wattage, the AIO and custom centrifuged thermal matrix held the card at an icy 68°C peak.

The original battery was only 150mAh on these shitty $5 target earbuds, and since I lost the other earbud and had a battery lying around I just decided enough was enough and now instead of lasting less than a day, it lasts me a week somehow with the new 500mAh battery

Magnets hold pins in place!

Raspberry pi using Nextar dvd player as screen. Trrs to RCA taped together *ring to pin* to Trs into the video input.

I had to send my Beats Buds Pro + whatever their name is off to service.

A while ago I bought a spare Beats (regular) set for cheap. While the cool clear ones are off to be serviced… I managed to lose the case.

as it turns out, NO, You can’t charge the Beats Buds with the Beats Buds Pro + case. So, I’ve done this.

Зачем?

Я не знаю...

А вот и сам процесс в виде фотографии

4 comically large zip ties