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If you want a simple, pocketable single-purpose dongle that adds a USB-C headphone jack and pass-through fast charging to a phone, tablet or laptop that only has one USB-C port, choose AMAKE USB C Splitter; if you need one adapter that juggles Lightning and USB-C sources, a 3.5mm jack, a USB-C audio jack and charging all at once, choose caojunzhen 2.
• AMAKE USB C Splitter — biggest strength: true plug-and-play USB-C simplicity with a built-in DAC (24-bit/96kHz) and up to 100W PD pass-through, wrapped in an aluminum and nylon body that weighs almost nothing.
• AMAKE USB C Splitter — biggest trade-off: it is strictly a two-port data + charging splitter — no 3.5mm analog jack, no video output, no SSD support, and it cannot charge two devices at once.
• caojunzhen 2 — biggest strength: five ports of flexibility, including both Lightning and USB-C input, a 3.5mm headphone jack and a USB-C headphone jack, with 60W PD charging.
• caojunzhen 2 — biggest trade-off: it is a bulkier multi-adapter aimed at mixed Apple/Android households, and its fast charging tops out lower at 60W.
• Pick AMAKE USB C Splitter if you live entirely in USB-C and want the cleanest, lightest audio-plus-charging cable.
• Pick caojunzhen 2 if you still carry Lightning devices, want a real 3.5mm socket, or need to switch between phone types without buying two dongles.
The AMAKE USB C Splitter is essentially a short cable that turns one fully functional USB-C port into two: one USB-C data port and one USB-C charging port. That's it — and that focus is its whole appeal. Plug it into an iPhone 16 or 15, a Galaxy S24 or S23, an iPad or a MacBook, and you can listen through USB-C headphones while the same port keeps feeding power to the device. No drivers, no setup, no thinking about it.
The audio side is where the design earns its keep. There's a built-in DAC handling 24-bit/96kHz high-resolution playback, and the design brief is lossless signal transmission — no compression, no downsampling. It also passes through microphone audio and headphone volume controls, so inline remotes and call mics on USB-C headsets keep working. On the power side it accepts up to 100W (20V/5A) PD, which is more headroom than most phones will ever draw and enough to keep a laptop topped up without throttling the original charge rate.
caojunzhen 2: Who It's For
The caojunzhen 2 is the opposite philosophy: instead of doing one thing cleanly, it tries to cover every port you might own. It has five ports in total — USB-C and Lightning inputs that both feed a USB-C charging path, a 3.5mm headphone jack, and a USB-C headphone jack. In practice that means an iPhone 14 owner with wired 3.5mm earbuds and an Android owner with USB-C buds can share the same adapter, and both can charge while listening.
Its charging is rated at 60W PD, and the design includes a chip that negotiates the voltage and current each connected device actually wants, which is the sensible approach for a multi-port adapter — it keeps the output stable instead of dumping whatever the charger offers. The audio chain is genuinely broad: 16-bit/192kHz or 24-bit/96kHz DAC support plus a 16-bit/48kHz ADC, which matters if you use a headset with a microphone, since the ADC is the part that digitizes your voice. The stated goal is clean transmission without electrical noise — the hiss-and-buzz problem that plagues cheap splitters.
Compatibility is its headline feature. The sheet lists the full iPhone range from 16/15 Pro Max back through the 7 and 7 Plus, plus a long list of USB-C devices including Google Pixel 8 and 7 XL, Galaxy Z Flip, and the S25/S24/S23/S22/S21/S20 families, Note 20 Ultra and older S-series. It supports data transfer too.
The trade-offs are real, though. It's red, it's a multi-port adapter rather than a slim cable, and 60W is meaningfully less than the AMAKE's 100W if you're trying to fast-charge a power-hungry laptop. It's also the kind of accessory you keep in a bag rather than in a pocket.
Side-by-Side: Which Should You Choose?
• Best for mixed Lightning and USB-C gear → caojunzhen 2. It's the only one of the two that accepts a Lightning connection at all.
• Best for analog 3.5mm headphones → caojunzhen 2. The AMAKE has no 3.5mm jack whatsoever; it's USB-C audio only.
• Best for high-wattage laptop charging → AMAKE USB C Splitter. 100W (20V/5A) PD versus 60W on the caojunzhen 2.
• Best for microphone and call quality flexibility → caojunzhen 2. It pairs a DAC with a dedicated ADC and offers two different headphone jack types.
• Best for travel and minimal bulk → AMAKE USB C Splitter. Aluminum shell, nylon braid, 0.02 kg, no driver install, plug-and-play.
• Best for port count → caojunzhen 2. Five ports versus two.
• Best for someone who wants zero setup decisions → AMAKE USB C Splitter. One data port, one charging port, no ambiguity.
In my opinion, the AMAKE USB C Splitter is the better buy for most people in 2026 — not because it does more, but because it does the one job most USB-C phone owners actually need, and does it with more charging headroom, a cleaner form factor and a genuinely simple design. I'd recommend the caojunzhen 2 specifically to anyone who still owns Lightning devices, wants a real 3.5mm jack, or shares accessories between an iPhone and an Android phone. If you're fully USB-C and just want audio plus charging from one port, I'd take the AMAKE.
I don't quote prices here because they move constantly. Check the current price on Amazon using the button on this page and compare both before deciding — that's the only figure that matters at checkout.
Can I use the AMAKE USB C Splitter with an iPhone 14 or older?
No. The AMAKE is USB-C only, so it fits iPhone 16 and 15 series plus USB-C iPads, MacBooks and Android phones. For iPhone 14 and older Lightning models, the caojunzhen 2 is the one that connects.
The AMAKE explicitly does not — its design rules out video signal transmission and SSD use. The caojunzhen 2 sheet doesn't claim video output either, so treat both as audio-and-charging accessories rather than display or storage hubs.
The AMAKE USB C Splitter is rated up to 100W (20V/5A) PD. The caojunzhen 2 is rated up to 60W PD and its sheet recommends pairing it with a PD wall charger to hit fast-charging speeds. For laptops, the AMAKE has more headroom; for phones, either is generally sufficient.
On the AMAKE, yes — the design supports microphone input and volume control through the headphone's inline keys, with no limit on volume adjustment. The caojunzhen 2 includes an ADC for mic capture and supports both 3.5mm and USB-C headsets, so inline controls depend on the headset you pair it with.
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