Just perfect

It does what is meant to do. It came charged at 56%, so you can be almost sure it has been stored right. After the first two charging cycles it lasts about two and half hours (depending on use you give to the computer). I doesn't get very hot and... It does what is meant to do. It came charged at 56%, so you can be almost sure it has been stored right. After the first two charging cycles it lasts about two and half hours (depending on use you give to the computer). I doesn't get very hot and seems like it's gonna be lasting enough time. Price could be better. It's just 'right'. Don't get me wrong, it's cheap, but I think this oughta be cheaper in China. Have no other cons. At this price, you can buy it and give off the old empty battery. Also when time goes on ... you can pick another one. It's been very useful to me. I think it's almost exactly as original, but half priced. You need it, buy it, for sure. Read more

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Great USB card!! True 2.0

Cheap, easy to use (drivers not required under XP), truly 2.0 speed... This card is a very good choice when you need extra USB ports in your notebook. I use it in an old Dell Latitude and works great!! Just plug and play ... instantly I was using... Cheap, easy to use (drivers not required under XP), truly 2.0 speed... This card is a very good choice when you need extra USB ports in your notebook. I use it in an old Dell Latitude and works great!! Just plug and play ... instantly I was using them with no problems. I bought it to use with an USB Oscilloscope (sku 37062) and it is working better than ever!! Oh, and it's really really thin!! (I can use it while another PCcard is already in) I can't see anything right now ... Mine came with an MP4 PLayer driver disc :S ... anyway, I didn't need any drivers, at least under XP. Also, my notebook had no 2.0 ports, only 1.1, so I've gained 100% with this card! It's well made, nice metal chassis, USB ports fit fine and I haven't need to plug the extra power cord. It works properly, as it should. Stop thinking that "chinise products are regular ..." because almost everything you can buy in the street come from China!! So in the end you're buying the same but much cheaper!! Go, buy it, right now!! Read more

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Good quality usb oscillograph

- Well made electronics - Enough precise (for almost everything except for calibration tasks ... obviously) - "Cheap" compared to desktop units. - Offers most functions you will need in a small electronic lab. - Light and portably, you can take it... - Well made electronics - Enough precise (for almost everything except for calibration tasks ... obviously) - "Cheap" compared to desktop units. - Offers most functions you will need in a small electronic lab. - Light and portably, you can take it everywhere (but you will need a computer still). - Probes included are good quality and easy to calibrate. - It runs also in MAC (trough a virtual machine). - You get software and source code, so if you want you can improve it or make your own version. - FFT function isn't the best for audio frequency. - Software you get is just "right" Useful USB oscillograph, a good choice if you don't want to spend $300 (at least) in a desktop model. Software is easy to use so it's almost plug and "play". I recived it very soon and well packaged. In my case it was Read more

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Useful cheap laser diodes

- Cheap - Well constructed - Includes a SMD resistor attached (20O) -> Recommended for almost any project you are working on - Wires soldered are poor quality (but the can be easily replaced) - You need to limit current flow in order to achieve... - Cheap - Well constructed - Includes a SMD resistor attached (20O) -> Recommended for almost any project you are working on - Wires soldered are poor quality (but the can be easily replaced) - You need to limit current flow in order to achieve maximum performance without burning it. - Take care with over-temperature risks. Laser diodes are very sensitive to it. As a electronic engineer, I recommend to feed it with 5v from a stabilized power supply with a 100O resistor (in series with 20O SMD attached). I mean: +5v ----100O----laserdiode----GROUND It will get a current of 15mA, enough to make it light strong, and for many time. It is a very good deal, and I think the best one for using laser diodes in your projects. Just remember how sensitive are laser diodes. Over-voltage, current or temperature, will burn it for sure. If you are thinking in buying a keychain with laser to dissasamble it, dont do that. Laser included in keychain will probable break even if you follow these instructions. Dust and heat will easily damage it. Read more

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