Seagate 250GB Expansion™ Hard Disk Drive, retail $59.99 (
($74.99 factory direct at
Manufactured by Seagate (
Last updated 05-08-10

This isn't a laser, flashlight, or other product specifically designed to produce light, but since it uses an LED for a rather important function, I figured "what the H-E-Double-Bendy-Straws" - I'd probably get eternal darnation if I failed to add it to this website because of that LED in it anyway.

This is an external 250GB (250,000,000,000 bytes or 0.250 terabytes!) hard disk drive that plugs into any free USB port on your computer.
It's purpose is to allow the user lots of extra storage space for things like music, videos, etc.

 Size of product w/hand to show scale SIZE

This disk drive is actually quite easy to use.

Plug the cord coming from the disk drive into any free USB port on your desktop or laptop computer. The computer (at least Windows XP machines anyway) should almost immediately "sense" its presence and automatically install the correct driver.

At this point, the disk drive should now be working.

It uses the USB 2.0 protocol to communicate to & from your computer, so you'll need to be running Windows XP or higher (all versions of Windows XP, Windows Vista, or Windows 7).

To access the content, click on the START button at the lower left of your display (assuming that you have the taskbar & system tray at the bottom like most Windows users), click on the text labelled "My Computer", and click on "Expansion drive {letter followed by a colon}".
From that point, you may treat it like any disk drive and run programs, copy to it, delete from it, etc.

This product obtains all of the power it requires right from the USB port, so I do not have to tell you which part to remove, huck into an open-pit gadolinium mine so that a piece of heavy machinery runs over & flattens it, and then rather emphatically tell you not to.

Like most USB devices, the Seagate 250GB Expansion™ Hard Disk Drive is hot swappable; simply meaning that you do not have to turn your computer off before plugging it in or unplugging it.

Unable to measure current usage due to how the product was constructed.

The Seagate 250GB Expansion™ Hard Disk Drive is designed to be a computer peripheral, not a flashlight meant to be carried around, thrashed, and abused; so I won't try to drown it in the toliet tank, bash it against a steel rod or against the concrete floor of a front porch, let my mother's big dog's ghost or my sister's kitty cats spring a leak (uranate) on it, run over it with a 450lb Celebrity motorised wheelchair, stomp on it, use a medium or large ball peen hammer in order to bash it open to check it for candiosity, fire it from the cannoñata, drop it down the top of Mt. Erupto (I guess I've been watching the TV program "Viva Piñata" too much again - candiosity is usually checked with a laser-type device on a platform with a large readout (located at Piñata Central {aka. "Party Central"}), with a handheld wand that Langston Lickatoad uses, or with a pack-of-cards-sized device that Fergy Fudgehog uses; the cannoñata (also located at Piñata Central) is only used to shoot piñatas to piñata parties away from picturesque Piñata Island, and Mt. Erupto is an active volcano on Piñata Island), send it to the Daystrom Institute for additional analysis, or perform other indecencies on it that a flashlight might have to have performed on it. So this section of the web page will be ***SIGNIFICANTLY*** more bare than this section of the web page on a page about a flashlight.

In fact, that spectrographic analysis and screen dump of a disk directory from this drive shown directly below may very well be it.

The platters (the internal part that holds all of the data) rotate at a speed of 5,400RPM (revolutions per minute); this alone tells me that performance (read/write speed in particular) should be very good at absolute minimum.

Spectrographic analysis
Screen dump of part of the directory in my Seagate 250GB Expansion™ Hard Disk Drive.

Spectrographic analysis
Spectrographic analysis of the green "power/drive activity" light in this product.

USB2000 spectrometer graciously donated by P.L.

Product was purchased at a Target store in Federal Way WA. USA in mid-2009.

Product was made in China.
A product's country of origin really does matter to some people, which is why I published it on this web page.

UPDATE: 00-00-00

    PRODUCT TYPE: USB external 250GB hard disk drive
    No. OF LAMPS: 1
    CASE MATERIAL: Plastic
    BEZEL: N/A
    CURRENT CONSUMPTION: Unknown/unable to measure
    WATER- AND PEE-RESISTANT: Light splatter-resistant at maximum
    ACCESSORIES: Possibly a driver CD-ROM
    SIZE: 5.560" (141.290mm) L, 3.150" (80.010mm) W, 0.690" (17.60mm) H
    WEIGHT: 0.350lb (360g)
    WARRANTY: 2 years


    Product was not intended to be a light-emitter, so the conventional "star" rating will not be used.

Seagate 250GB Expansion™ Hard Disk Drive *

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