Recently, the same question was discused in the thread
Suggested IDE/PATA enclosure for 2.5” external ThinkPad hard.
In the case you want to buy an enclosure for yourself, and a HDD to mount in the enclosure, this is my advices to consider with respect to the enclosure:
As you say, there are TONS of external harddisk enclosures around (to use via USB), and they work much alike. Some are too cheap to be worth the money, because although you can get them from down around $5, I would personally rather pay a bit more, and then buy a “recommended” one from a shop having some sort of customer feedback… because saving a lot of trouble is more worth than saving a few $$$. Of the US computer shops having a wide selection, being easy to navigate through, and having a very, very fine customer feedback section, I prefer Newegg (actually, I knew very few such good shops in the US with a similar amount of very qualified and usable customer feedback).
What to look for? An enclosure of metal (will conduct heat from the HDD to the surroundings), the enclosure must be designed for the HDD you intend to use (either SATA or ATA/PATA/IDE, the latter being three different words for the same thing), preferably some LED (light emitting diode) to show when the HDD is “on” and active, and an enclosure. You also want a Y-cable that connects to two ports at the PC, because a PC, e.g. a ThinkPad, will only source (=deliver to an external device, e.g. a HDD) 0.5 Amp per USB-port, and a large (two-platter, having capacity over 100 GB) 2.5” HDD will typically require between 0.7 to 1 Amp to spin up. In any case, it is nice if being able to power an external (big, power-hungry!) 2.5” HDD only via the ThinkPad USB-ports, then you need a from-the-external-HDD-to-USB-PC-ports cable with two USB cables/connectors (in the PC-end). If using an external power adaptor, no problems. Also, it is of course absolutely inconvenient to have/need an external power supply for these small, external HDD’s since sufficient power IS already available via the USB-ports on the ThinkPad.
I just discovered what I haven’t seen before; this:
VANTEC NexStar3 NST-260U2-BL Blue External Enclosure - an "Tee-cable" allowing the two USB-ports of the PC to source the external HDD with all the power it needs, and simultaneously having a “pass-through” USB-connection in one of the connectors such that you can simultaneously use e.g. an external USB-mouse and the external HDD itself. The “T-like” USB-connector looks a bit spooky (because I haven’t it before), but it is of course nice if you always use an external mouse, also while making backups to the external HDD!
So, what to choose? One of those with an USB-cable having a Y-connection (w/two USB-connectors connecting to the laptop) in the one end, and a drive capable of lie flat rather than NEEDING to placed vertical (if it already lie flat, it won’t fall, and thereby potentially damage the HDD inside). Get one with a protective bag – then it can mush better take it accidently being “bumped around” a bit while not in use.
I went to Newegg and selected: Home > Computer Hardware > Computer Cases > External Enclosures (x) > Size : 2.5" (x) > Material : Aluminum (x) > Internal Interface : IDE (x) > External Interface : USB 2.0 (x) – this all took me
here. Then, have a look for yourself – any particular taste? See
this one (having a Y-style USB-cable, and a big carrying bag, holding both HDD and cable). What is the “One-touch backup system: P&G (Press & Go) built-in”? f you don't alreday have a backup program, I suggest to use Acronis True Image (I have only used up to ver. 9, which functions very well under XP, but won't support Vista. ATI ver. 11 will support Vista). If like the blue or red ones, I’d say get either
this one or
this one.
Remember to place a thin sheet of plastic – or just a piece of paper - beneath the drive itself and the (inner) bottom of the enclosure – to prevent the drive from directly touching the electrically enclosure (and by this potentially short-circuiting some of the HDD electronics). As a reviewer says somewhere:
“Cons: When I was researching new enclosures I read of buyers who had problems with the board touching the inside of the enclosure and shorting out. SAME HERE! Took care of it by cutting up the static bag and a little tape”.
A few recent large 2.5" ATA drives are discussed in the thread
T41: Which HDD to buy? Seagate 160 or WD 250GB?. Personally, I prefer Seagate drives - cool, quiet, reliable and comes with a 5-year warranty.
When you are all set, then see the guuide at
How to Install an External Hard Drive Enclosure.
Best regards,
Johan