Portable hard disk with write-protect switch

Question

I'm looking for portable hard disks that have a physical switch (with or without key) to make it "read only" to prevent modification.

Is there a particular keyword I should look for that designate those types of drives, or models I can look into, anything that can guide me will help.

Thanks

Answer 1

Some very few USB keys can be found here, for example:
Ritek Ridata Twister 32GB USB Drive with Write Protection.
I haven't found any larger write-protected external disks.

For others, this article recommends trafficking the jumpers (!) :
How to Write-Protect an External Hard Drive

Answer 2

I have done a lot of browsing an d was surprised how few drives there are with this feature. The only drive I've found that is still available is the Chinese Eaget E901. You can still grab this thing from most Hong Kong based resellers.

As for your question about the keyword, the best results came up with the words "write-protect usb". Apart from the drive I mentioned, similar queries turned up plenty of thumb drives but no HDD enclosures (most products are no longer made or sold).

Answer 3

Read-only USB Stick - Didier Stevens

Answer 4

Amazon's related purchases system led me from the aforementioned Ritek model to the Kanguru Flashblu 2 product line. I don't have any personal experience with them, but I read through the comments on the various models (2, 4, 8, 16GB). There were about 10 reviews total. Bad experiences included:

• one customer said that 5 of the 30 models they ordered arrived with broken switches (the 4GB model)
• another reviewer with a similar (near-)DOA issue, this one for the 2GB model. The chip apparently came loose from the body of the device within a few days of reception. The protagonist was able to remedy this with some super glue.
• A couple of people complained about the fact that the cap is not attached to the body of the device. Personally, I would recommend that these people learn the skill "Glue And String".
• Although no-one complained about the Kanguru's switch itself, someone did mention that the label for it was logically inverted, i.e. the "Read-only" setting was labeled "Read-Write" and vice versa. "Pen and Sticky Tape" could be beneficial here.

Other than these complaints — gleaned from 3 or 4 different reviews — reviews were overwhelmingly positive; most customers gave their respective model 5/5 stars.

A comment on the Ritek Ridata Twister mentions that it has a relatively awkward-to-use switch: it is apparently a DIP switch that you need a paperclip to operate. On the upside, it is a 32GB model.