Bit Trade One USB Cable Checker2 [Assembled] Supported USB MiniB/microB/TypeC Cables/USB Digital Tester/USB c Cable Tester/USB Cable Tester Tool / H0.5xW3.5xD2.1 inch ADUSBCIM

I am providing an overall comment for three USB testers, all of which deserve to be purchased as they complement each other perfectly and are consistent in their results. I would like to dedicate the majority of this review to the Bit Trade One model, which has recently arrived on Amazon. It deserves a shoutout because the tool is exceptional and inexpensive for what it offers. The ADUSBCIM is a USB cable tester that truly complements traditional USB cable testers. Only the cable to be tested needs to be plugged into the A and B ports, and the tool does the rest. The reference value for calculating the cable's resistance is taken using a CR2032 battery, and I note that the calculation is very precise and stable. You can find on Bit Trade One's ADUSBCIM GitHub page, in the Pull Request section, a manual in English in PDF format. This is my small contribution to the project, as the current official English manual is more of a word-by-word description that is difficult to understand. Thanks to this tester, I discovered, for example, that Anker cables, the 765 series, were actually poor high-resistance cables, and that I had much better options for charging. I ended up wasting money on cables that turned out to be slower than cables that were given to me for free with computer accessories. The FNIRSI FNB58 is a very comprehensive USB-A and USB-C port tester. It notably offers numerous rapid charging protocol tests, can test the quality and resistance of a cable, and obtain oscilloscope-like graphical representations. Now that we are on PD3.0 and with PD3.1 approaching quickly, owning one of these tools is now essential to validate the proper functioning of an installation. I've read a lot of advice on Reddit, and if you're looking to equip yourself with the best products offering the most testing possibilities, here are the tester references to get: - Bit Trade One ADUSBCIM (very thorough cable tester testing all the lines of a cable) - FNIRSI FNB58 (the most comprehensive, many ports, many scenarios, USBA/C Micro) - ChargerLab KM003C (the most modern, TB4, 250W) If you have these three or at least a combination of the cable and usb tester, it will take you no more than a few days to become a USB expert. 👌

This is the only "smart" USB cable tester that I found (all the others were passive, simply using LEDs to show continuity between ends). Aside from the basic good/bad test, here are two features that are most useful to me: 1. Identifies power-only cables (no data lines) 2. Identifies whether a USB-C cable supports all of the data lines for SuperSpeed or SuperSpeed+ -- just because it has C-type plugs doesn't mean it's high speed! There are passive testers that can satisfy the points above (if they have more than four LEDs, of course), but here's what you get with this smart tester: 1. Line resistance -- high resistance on power lines (VBUS and GND) makes for a poor charge cable 2. CC line checking: a) USB-C cables may have a pull-up resistor inside the plug that's used to signal to the power supply the maximum current that should be allowed b) or for high-power cables, there could be an E-marker chip on this line for more advanced power capability identification c) some cables have a different pull-up/pull-down resistor on the other end of the CC line, which is a non-standard implementation and could indicate that the connector is sensitive to orientation So, who needs this tool? 1. It might not be a justifiable expense for the average user. if you have a pile of USB cables and just want to know which ones are good and which one to throw out, or which ones are power-only, a simpler LED-based tester would be enough. 2. IT professionals and tech-nerds will benefit from the ability to confirm whether a USB-C cable is really just a USB 2.0 cable in disguise, or if it actually support full-speed data transfer. Maybe that external SSD is slow because you're using the wrong cable? 3. Microcontroller software/electronics developers implementing USB power for their high-power prototypes, or high speed data transfer capabilities, will want to make sure they're using a proper cable for testing. Flaws: 1. The device seems to be sensitive to connectivity on the shells of the USB jacks. Slight movement of a cable plugged into these will cause the LCD to clear and redraw (so there's a noticeable flicker) as it re-determines whether the shell is bonded to GND. Not sure if it's a flaw with the electrical connectivity between the shells and the microcontroller, or suboptimal firmware -- probably some combination of both. 2. Given the physical nature of this tool (a raw PCB sandwiched between acrylic plates) and the fact that it uses an easily-programmable Atmel ATmega88PA MCU, I'm a little surprised that the firmware (and maybe the schematics) isn't open source. I can see some fellow nerds wanting to tweak the firmware for the benefit of all users, or even customize the firmware for their own use. But given the subjectively high price tag, I'm betting there's a rather wide margin that they aren't willing to cut into, so I get it. Given the flaws, it's still a very useful tool.

This is a clever, self-contained device that provides detailed information on an USB-C cable's features. Documentation is readily available on the web. It makes it easy to figure out if a USB-C cable is just for charging (which usually means that it transfers data at USB 2.0 speeds) or if it can provide various levels of charging power and/or high-speed data transfer. Almost no USB-C cables are labeled with this information, making this an invaluable device.

Works Great to tell if a cable is for just charging or high speed data. Quality is very good!

This is pricier than some similar devices that just show what pins in usb plugs/cables are connected, but the very unusual feature it has is showing the resistance (in milli-ohms) of the vdd+ground wires of the cable. When drawing 2+ amps over the usb cable, the resistance in some cables can cause a lot of voltage drop, so this is a killer feature for comparing usb charging cables. (Much more convenient than setting up a usb charger, test load, and meter to measure the voltage drop at high current.) It also shows on the little screen, whether the connector shells are connected across and/or to the ground wire, which is nifty, and whether the cable has an e-mark chip (but not the details on the chip).

This is a quick review of the USB Cable Checker 2 by BitTradeOne. The product was $60 at the time of review and arrived fully assembled. I bought this tester to help sort through the mountain of USB cables I've collected over the years, and overall, it is pretty good. I was shocked that so many USB-A to USB-C cables I got with devices don't even have D+/D- pins, for example. If they build revision 3 of this tester, I would like to recommend some improvements: 1) I wish they used a USB3 Micro-B connector instead of the USB2 version. The USB3 version of the connector is backward compatible, and even if we expect all of the conductors to be present, knowing about the DC resistance of different cables can still be helpful. 2) Some non-standard USB-A to USB-C cables have pull-up resistors on CC1 and CC2 instead of a pull-up on CC and an open Vconn. The cable checker can show it, but the information is presented differently than other cables.

Very handy for checking USB cables for the number of conductors, the resistance of the power leads, and the maker's electronic coding, if any. Operation is easy: plug in both ends of the cable and turn it on. LEDs indicate which conductors are present and the little alphanumeric display shows a bit more information such as shield grounding. As an example use, cables included with USB devices are seldom described; this device can instantly show that a cable is for charging only (no data conductors), or just capable of USB-2 speeds because it only has the two basic data wires. It can't generally show the actual maximum data speed or power limit, but it can often help decide the better of two cables or whether one is unsuitable or faulty.

Given what's been happening with USB-C cables lately (in that you can get all kinds of permutations on how they're wired) this device is essential equipment. I've saved so much time by testing stuff with this before using it. It tells you exactly what the cable is capable of. Example: You have a pile of USB C-C cables. Are they fully wired or just moving power (and - is it just 5v or PD)? This will clue you in in about 2 seconds. From there you can label the cable in some way and never have to think about it again. I highly recommend this device. 5 stars.

これのお陰で本当のUSBケーブルが解りました。ただそれだけです。

When every product comes with its own USB-C charging cables these days, this is an extremely useful tool to have. This nifty little gadget helps me separate the good cables from the e-waste!

USB-Cがコネクターの主流になった現在、同型で性能が全く違うものが混在してますが外見では殆ど判断が出来ません。 結果いろいろなUSB-Cケーブルが増えてどれがどれやら分からなくなってしまっていたのですが、この製品のお陰で一発解決でした。それぞれ仕分けして整理できました。中には表記があるコードで違った性能のもあったので実用性が非常に高いと思います。C国製は偽表記が多かった。 性能は文句なく満足できるレベルですが外装はアクリル板に回路基板を挟んだこれ以上無いシンプルなものを考えると価格が少々お高い感じは否めませんが同じ性能でも抵抗値表記があって判断基準が一気に上がりました。 電子機器の性能が上がって個々の性能に適したケーブルを使わないと使えなかったりボトルネックになって性能が出ないので表記に関わらす電気的に計測できるので非常に良い製品だと思います 注：付属のボタン電池は動作確認用みたいですぐにダメになりました（わたしのがハズレだったのかもしれませんが）

凄く良い製品で とても気に入ってます

中華系のコードは 60 W に充電できる 120 W に充電できると言っても 30 W ぐらいしか充電できない コードがたくさんある それを選別するために購入したのだが これは手放さなくなってしまった