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Pros: Did what you expect from a USB thumb drive. Physically very small.
So far the plastic cover that protects it is staying on, too, even though it is just held on by friction, and the drive lives in my pocket. That plastic cover is great because it is much stronger than my other drive's cover, and it also protects the drive from dirt and dust. The other drive has gotten crushed a few times in my pocket, doesn't keep the dust out, and is now a bit hard to insert and remove into a USB slot; I can see where its metal was bent. The SanDisk's thicker cover that also covers the open end of the drive should prevent that bending.)
Cons: The product is so small that it's easy to mislay or lose. Designed into it, below the SanDisk logo, is a hole that suffices to attach a lanyard (a short cord so you can attach it to a keyring, a backpack, etc) but no lanyard itself is included. I used to buy A-Data USB2/microsd readers of a similar size that did include such a lanyard (I still had one on my keychain) so I took an old lanyard and attached it to this SanDisk drive. Now I have the SanDisk drive on my keychain.READ FULL REVIEW
Pros: It does power my laptop (Acer Aspire One nav60 at 19 volts). The flashlight appears to work. I started my friend's Cummins diesel Dodge Ram 2500 with it, on the third try. It has since started four or five other friends' cars or trucks (I recharged it to full between each one).
Cons: After the Dodge Ram started, smoke came out of the plastic box on the red clamp. I didn't know if it would work a second time (but in fact, it did work, four or five times so far). The car didn't run more than 10 or 20 seconds before I hopped out and started disconnecting it.
The description says it has two USB ports, but there is only one USB port.
The people who wrote the "manual" (a single folded sheet of paper about 2x3 inches) didn't speak Englis. "How can start power supply be started?" for example. And the people who designed how it works also didn't understand humans. The total controls are an On/Off switch, and one button. Different lengths of presses and releases of that button do many different things -- but even that painful user interface is not documented.
That one button is used to show how much power is left (short press), turn on the flashlight (hold 3 seconds), switch flashlight modes (short presses), and select the laptop output voltage (short presses but it only seems to have this function under mysterious circumstances). There is zero documentation on the red safety flasher, but I discovered by accident that you turn it on (or off) with two presses separated only by a short time unpressed. The USB port provides power sometimes, and not at other times, and I haven't figured out how to make it RELIABLY provide power. Perhaps the USB port doesn't work when you have plugged in the cord providing laptop power (even if no laptop is connected)? But who would ever want to charge both a laptop and a phone at the same time?
The FAQ and "How-To Video" at boltpowerusa.com jumps out to geveysim.net, misidentifies itself as "Bult Power", and merely says "Website coming soon". Which is also true for the "Warrantee/Returns" link. Don't buy it if you actually want to exercise the warrantee. The email address on that folded sheet of paper is email@example.com, which is a domain name that does not exist. It might be a typo for tilusa.com which shows an uninitialized WordPress site.
Other Thoughts: If this was designed for humans, it would have a separate switch for each function. E.g. a 3 or 4 position switch for the laptop voltage setting (including an off position); a flashlight switch; it would use low power LEDs to show how much power is there the entire time it's turned on; and it would just have the USB port live whenever the On/Off switch was on, but use circuitry to leak very little power when no device is plugged into it.READ FULL REVIEW
This review is from: WD 6TB My Book Desktop External Hard Drive - USB 3.0 - WDBFJK0060HBK-NESN
Pros: It's working. These external drives seem to always arrive working. I didn't have that experience with internal drives, particularly in the past when NewEgg didn't have great drive packaging materials.
Cons: Physically bulky, needs external power supply, etc. The overall external case is 3x the size of the actual drive. But when I get external drives with cases that are closer to the real size, they always seem to overheat. This one does a nice job of ventilation.READ FULL REVIEW