What is a card reader, how to choose and what is it for. Types of card readers

Content:

Features and purpose

Today everyone should know what a memory card reader is. (well, or almost everything), because they are gaining in importance. Usually operators and photographers need these devices., recording events with professional devices. Many manufacturers are actively implementing the micro SD standard, however, memory drives of other formats remain widespread.

Many buyers are wondering, what is a USB card reader for, how can he help? First of all, it allows you to read data from memory cards, which are installed in cameras, PDA, phones, etc..

There is an opinion that, that today there is no longer a need for such devices, because most of these devices come standard with a USB cable. However, we have ample reason, to disagree with this opinion - this device still retains its relevance. Therefore, we recommend that you definitely install it, if you decide to buy or build a new computer to order.

First of all, USB cable allows data transfer at speeds up to 300 Kb / s. As a result, it will take quite a long time to download several gigabytes. The card reader, on the other hand, surpasses the USB cable in data transfer speed 20 once - to 6 Mbps.

Another important advantage is practicality and ease of use.. Since operating the device via a USB cable usually requires additional drivers and software. This problem is especially relevant when working with many digital devices., which need to be connected to different computers. The card reader avoids this problem., quickly recognizing the connected card, which is perceived as a separate removable disk.

Also, any device when connected via USB consumes additional energy, negatively impacting laptop battery life, eg. This will be especially important, if you are traveling or on the road.

In addition to the undoubted advantages of the card reader, the varieties of this device deserve attention.

Depending on the type of connection, they are:

internal,
external.

The internal structure is relevant for users, working only with their PC. It connects to the 3.5-inch slot of the system unit - in place, where the legacy floppy drive was previously installed.

External card reader selected by users, who have to work on different computers. This device has gained significant popularity, so let's talk about this variety in more detail.

Most of them work using the USB interface 2.0. Although modern models already support the USB standard 3.0, for better baud rate. They also support plug and play technology - with the ability to turn them off "hot", without taking further action.

How to choose the right card reader

When choosing a card reader, a prerequisite is the supported formats of memory cards. Support is provided for the main part 7-10 types of cards. But if you need to work with only a few of them, we can recommend models with a small number of formats for better speed of work.

Most card readers are made with several slots, designed for flash cards of different types (SD. MS and others). Usually their number does not exceed 5. However, if you need to work with maps, not suitable for one of them, you can recommend the purchase of one or more special adapters, depending on the specific type of memory.

Also, to purchase, you should inquire about additional useful functionality: USB ports or combining memory cards into a RAID array. You definitely need to make sure, that the device comes with the appropriate software to work with this device.

Learn more about portable devices

The most common card readers are in the form of USB sticks. Their main advantage lies in the combination of compact dimensions, light weight and good ergonomics. They usually support no more than five formats.

Given the small volume and affordable price (within 5-7 dollars), data transfer speed is insignificant - at the USB level 2.0. But it turns out to be enough for devices no more than 16 GB. Thanks to the appropriate adapters, you can significantly expand the functionality of such card readers, but this will require additional, albeit small expenses.

At the same time, the device can be significantly more expensive when using non-traditional materials for production. Usually such non-standard materials can be leather or metal., which have a decorative function. This is where the main criteria for functionality and usability end - everything else depends on personal preference..

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