card reader - a device enabling the read / write data from memory cards of different types and sizes.This, of course, can be done using USB-cable, but for each device, you must have also the driver.And if your home computer, you can install the correct driver, then install the software on another quite troublesome, and not all will do this.In any case, the card reader - is convenient.Just at the right slot (slot) insert a memory card, connect a device to the USB port and transfer the necessary information on a computer or with him.
What to look for when choosing
By the principle of mounting a magnetic card reader can be internal or external.Internal drives are installed in the system unit, external portable -podsoedinyayutsya connector USB.The choice of this criterion is simple - you need to, then buy, although almost always prefer an external model.The cost of both species at about equal.
parameter, which first of all should pay attention to - the number and types of supported memory cards.Peruse the list, if it contains all the formats that you have on hand, so you can buy a card reader.There are models that read all existing formats but firstly, constantly emerging new device, and thus the new media, and secondly, the larger the formats supported, the higher the cost.So much chasing amount in this case, it makes no sense.
The most common card reader for cards running at speeds of 480 Mbit / s, and only some of the new models give 500 Mbit / s.For most computers is enough speed, but for the newer models with USB 3.0, this speed is not enough.This new port can deliver 5 Gbps / sec, so that the standard of 0.5 Gbit / s few people are satisfied.We must look for the appropriate device format (there already are), but to provide a high rate and the card must also support this speed, otherwise we get all the same 0.5 Gbit / s.
Also pay attention to the compatibility with a card reader installed on your computer operating system.All of these devices have their own software, which assigns them to work.If you are running Windows, do not worry, but the owners of other less popular systems definitely need to make sure that the card reader and your OS is compatible.
Additional features
There are models that combine several devices.For example, a card reader and USB-ports, that is, such a device can be used as a USB-hub.There are models that also serves as a flash drive.Sometimes these combinations are very useful.
There are also adapters.These devices allow you to connect the card to the card reader, which does not provide connectors.Once assembled, such a construction is very cumbersome and inconvenient, but if there is no other way out, the operable and often helps.For example, you buy a new device or card, for it is not provided input on the cardreader.In this case, the purchase of the adapter will be way out (if not planned purchase of a new reader).
