1.NEW 16 MEGA USB WebCam User's Guide

2.External Hard Drive User's Guide

3.Understanding Advertised vs Actual Hard Drive Storage Capacities

NEW 16 MEGA USB WebCam User's Guide

Important:

Please adjust the focus ring to get your best capture

Warranty is supported by L&H Y Trading Inc. Please contact us at hlfactoryoutlet@gmail.com or visit our website for additional info: www.usa-best.com

VISTA:

For internet instant message applications:
Driverless, plug and play.
Plug the connector of the USB cable into your computer's USB port. The video image comes on automatically whenever you launch or accept a video call.

For still capture functions:
Need to download and install a driver. Link to download the driver:
http://www.usa-best.com/driver/webcam.exe
.
WINDOW XP:

For internet instant message applications:
Driverless, plug and play.
Plug the connector of the USB cable into your computer's USB port. The video image comes on automatically whenever you launch or accept a video call.

For still capture functions:
Driverless, plug and play.
Plug it into your computer's USB port -- go to my computer -- click USB Video Device ( this name may be different in different computers)
You are able to perform Still Capture and Snapshot functions under USB video device

However, if you download and install the driver, you will have more options for still capture functions. Link to download the driver:
http://www.usa-best.com/driver/webcam.exe

MAC:

For internet instant message applications:
Driverless, plug and play.
Plug the connector of the USB cable into your computer's USB port. The video image comes on automatically whenever you launch or accept a video call.

For still capture functions:
Need to download and install a driver. Link to download the driver:
http://www.usa-best.com/driver/webcam.exe
.
WINDOW 98/2000/ME and all other operating systems:

For internet instant message applications and still capture functions:
Need to download and install a driver. Link to download the driver:
http://www.usa-best.com/driver/webcam.exe

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External Hard Drive User's Guide

PLEASE READ! IMPORTANT INFO REGARDING YOUR ORDER

A Seagate, Western Digital or Fujitsu Hard drive(depends on what you purchased) has been pre-installed in the hard drive case. You can open the case with the screwdriver to check the hard drive. As listed, you got

A 2.5-inch USB 2.0 Aluminum External SATA Hard Drive Enclosure AND
A named brand hard drive

The actual usable space is always less than the advertised space for all external hard drives. Please read the article enclosed for the explanation. A link is provided at the end of the article to calculate the usable space for your hard drive.

The hard drive has been formatted and tested, and ready to use. It is in perfect working condition. If your computer does not recognize the drive, most likely the usb port you used did not provide enough power support. Please follow the instruction below to do trouble shooting.

Trouble-shooting instruction:

1.Please do not use usb hub and use usb ports on you computer instead. usb hub does not provide enough power support.

2. Please connect the TWO connectors of the cable to two usb ports on your computer. one usb port does not provide enough power support for some computers.

3. If the first two don't help, please use the USB ports at the BACK of the computer, NOT the front ones.

4. please try a different USB cable.

MAC users please contact us for additional info.
Your satisfaction is our number one priority. We stand behind our products. Please contact us for any questions or concerns. Please communicate with us before posting an unfavorable feedback, We will definitely fix the problem and continue to count you among our satisfied customers. Thanks again for your business! IT IS OUR PLEAUSRE TO DEAL WITH YOU

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Understanding Advertised vs Actual Hard Drive Storage Capacities

Sooner or later, most of us will notice that the new external hard drive that we have just bought from our favourite online store, does not have the amount of space available that we paid for. Our first thought is that the hard drive is not as large as it was advertised. In this article, we take a look at how the capacity of hard disk drives is calculated, and why their actual size differs from the advertised size.

It comes down to Bits and Bytes

All computer data is stored in a binary format as either a one or zero (called a bit). Eight of these bits together are most commonly called a byte. Storage capacity is measured by a prefix to the B (byte) to represent a specific amount, ie K (Kilobyte), M (Megabyte), G (Gigabyte), T (Terabyte) etc. Since all computers are based on the binary system, these prefixes represent base 2 amounts. Each level is an increment of 2 to the 10th power or 1,024.

The common prefixes are as follows:

* Kilobyte (KB) = 1,024 Bytes
* MegaByte (MB) = 1,024 Kilobytes or 1,048,576 Bytes
* Gigabyte (GB) = 1,024 Megabytes or 1,073,741,824 Bytes
* Terabyte (TB) = 1,024 Gigabytes or 1,099,511,627,776 Bytes

This is very important information because when a computer operating system or program reports the available space on a drive, it is going to report the overall total of available bytes or reference them by one of the prefixes. So, an OS reporting a total space of 74.51 GB actually has around 80,004,503,306 Bytes of storage space.

Advertised vs. Actual

Since consumers don't think in base 2 mathematics, manufacturers decided to rate most drive capacities based on the standard base 10 numbers we are all familiar with. Therefore, one Megabyte equals one million bytes while one Gigabyte equals one billion bytes. This isn't too much of a problem with fairly small numbers such as a Kilobyte, but each level of increase in the prefix also increased the total discrepancy of the actual space compared to the advertised space.

Here is a quick reference to show the amount that the actual values differ compared to the advertised for each common referenced value:

* Megabyte Difference = 48,576 Bytes
* Gigabyte Difference = 73,741,824 Bytes
* Terabyte Difference = 99,511,627,776 Bytes

Based on this, for each Gigabyte that a drive manufacturer claims, they are over reporting the amount of disk space by 73,741,824 Bytes or roughly 70.3 MB of disk space. So, if a manufacturer advertises an 80 GB (80 billion bytes) hard drive, the actual disk space is around 74.5 GB of space, roughly 7% less than what they advertise.

Below is the link of a calculator

Click to calculate the Actual useable capacity of your hard drive

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