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USB 3 is backward compatible to USB2, without all the benefits.. (so the transfer speed is down to USB 2.0).<br />
(USB 3 has extra wires for highspeed transfers, that won't be used .)<br />
<br />
You may need an external power adapter for the disk... depends on power requirements of the disk. USB 3, can deliver a bit more power. although not a lot).
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USB 3 is backward compatible to USB2, without all the benefits.. (so the transfer speed is down to USB 2.0).
(USB 3 has extra wires for highspeed transfers, that won't be used .)

You may need an external power adapter for the disk... depends on power requirements of the disk. USB 3, can deliver a bit more power. although not a lot).

Principal Software Engineer

Dr. Klahn

Member_2_231077

retired

Jegajothy vythilingam

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If you really want the speed you can add a USB 3.0 ExpressCard for about $10, but it would be a waste of time unless it is a SSD. Same as above though the laptop isn't going to let it have enough power to run large external hard disks even through the ExpressCard.
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If you really want the speed you can add a USB 3.0 ExpressCard for about $10, but it would be a waste of time unless it is a SSD. Same as above though the laptop isn't going to let it have enough power to run large external hard disks even through the ExpressCard.

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wht is the exact model of the 1 TB drive ?<br />
<br />
and what makes you think &quot;&nbsp;it requires a usb 3.00&quot; ?? &nbsp;any problem or error? &nbsp; then plse tell us
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wht is the exact model of the 1 TB drive ?

and what makes you think " it requires a usb 3.00" ??  any problem or error?   then plse tell us

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My laptop is a Dell 6500 lattitude &amp;the OS is win 7 enterprize edition. &nbsp;I also have an ext WD HD 500 gig (F drive).<br />
I am trying to add a 1T ext HD but it requires a usb 3.00. &nbsp;Does my laptop have a 3.00 usb, if Yes, which &nbsp;one is it, or how do I figure it out. &nbsp;thanks
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My laptop is a Dell 6500 lattitude &the OS is win 7 enterprize edition.  I also have an ext WD HD 500 gig (F drive).
I am trying to add a 1T ext HD but it requires a usb 3.00.  Does my laptop have a 3.00 usb, if Yes, which  one is it, or how do I figure it out.  thanks

usb 3.00 ports

Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.

Operating Systems

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Dell is in Enterprise, Home Office and Consumer sectors of the market, supplying a broad range of customizable desktops, laptops, notebooks, servers, storage, and network devices.

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Storage devices include any device used for storing and retrieving digital information. Hard disk drives (HDDs) use one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially. The primary competing technology for secondary storage is flash memory in the form of solid-state drives (SSDs), but HDDs remain the dominant medium for secondary storage due to advantages in price per bit and per-device recording capacity. CD-RW (Compact Disc-ReWritable) is a digital optical disc storage format that allows information to be stored outside the mechanical HDD.