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★★★★★
iOrange-E's 10ft A-to-C cable has the correct CC termination! A great long legacy cable for your Type-C devices!
Benson here again, continuing my reviews of USB Type C legacy cables. Today I am reviewing iOrange-E's "USB C to USB A iOrange-E 10ft (3M) Braided Cable" Let's talk about spec compliance. My test setup today include a Chromebook Pixel 2015, and a Chromium OS USB-PD Sniffer (codename Twinkie). Please check it out by searching google for "Chromium USB-PD Sniffer". This product is also available on Amazon here : Plugable USB 3.1 Type-C (USB-C) Power Delivery Sniffer I got a comment in one of my previous reviews that I should be testing with a 2.4A capable power supply to demonstrate that the cable is of good enough quality to sustain 2.4A charging, so for this review, I am using one of Apple's 1st party power adapters with a 5.2V, 2.4A charging capability, specifically Apple's 12W iPad charger. Running the ectool command on Pixel: localhost ~ # ectool --dev 1 usbpdpower Port 0: SNK Charger Proprietary 4725mV / 2400mA, max 5000mV / 2400mA / 12000mW Port 1: SRC In this case, the Pixel has negotiated up to 2.4A of charging through the <vendorname> cable to the Apple charger. Switching over to the USB PD sniffer, I'll run the "tw cc" command to get a voltage reading on both CC lines: > tw cc CC1 = 424 mV ; CC2 = 22 mV The important number to look at here is CC1, which indicates a voltage of 424mV. If you refer to the USB Type-C Specification 1.1 Table 4-25. Look at the row labeled vRd-USB, which indicates the legal voltage values to read from the CC pin in order to be categorized as "Default USB Power". The range is Min : 0.25V Max : 0.61V. For this cable, I measured a value of 0.424V right in the middle of this range, indicating that yes, this cable has a 56kΩ resistor and is within spec for CC termination. One more twinky command : > tw vbus VBUS = 4692 mV ; -2448 mA The vbus command here uses twinkie's built in current and voltage meter. It's confirmed that Pixel is charging at 2.4A. I have also done a 4-wire measurement of impedance on Vbus and Gnd using a bench LCR meter to see if this cable is within spec for IR Drop (Section 4.4.1 of the Type-C spec) : Vbus : 0.117Ω -> 351mV Gnd  : 0.096Ω -> 288mV Vbus impedance is within spec, with lots of extra headroom under the 500mV limit. Gnd impedance is just slightly over the 250mV limit, however my practical testing shows that this cable will not cause excessively slow charging. I am still able to charge up to 2.4A without problems, so this isn't a huge problem. This is still very good for a 3M cable. For a USB 2.0 High Speed data test, I’ve hooked my Nexus 5X to my Chromebook Pixel via the iOrange-E Type-A to Type-C cable to test large file transfer via MTP. It just works, no problem! For other more subjective judgements of this cable : The housing of both ends of the connector are a nice aluminum finish, definitely designed to be right at home with the all aluminium MacBook, Chromebook Pixel, and Nexus 6P devices. The Type-C plug on this cable is a stamped metal part that's been wrapped around to the shape of the plug. It does have a seam on one side. This is good, but not as great as other cables (including second generation iOrange-E cables) that have deep-draw extruded plugs, like Apple or Google ones. The cable itself is a braided kind, which feels very good especially compared to the cheaper plastic kind used by others. This cable is also LONG at 3M or 10ft. Despite the length, it passes charging and data transfer tests without a problem. Finally, this cable comes with a handy twist tie for cable management. In conclusion, this is a fine cable for your Nexus 6P/5X to use with all of your older USB Type-A chargers, hubs, and PCs. It also works great with Chromebook Pixel 2015 and will work great on USB Type-C spec compliant devices to come!
April 2016 · Cell Phones and Accessories · verified purchase
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