In the new ICY BOX IB-SAFE226, an external enclosure, an AES-256 encryption protects the data on the 2.5" SATA HDD. The user needs a physical key and the enclosure with its special chipset. To decrypt the HDD he needs the same key and an appropriate enclosure. Without the key: nothing. So you better do not keep the key too close to the enclosure.
Each key is individual. Only two of each are made. Combined with the chipset of the IB-SAFE226, it blocks the starter in the cache of the HDD. So you can leave the HDD unwatched for a moment. It only has be encrypted.
As the hardware is encrypted, the speed of the data transfer is unaffected. AES-256 means Advnaced Encryption Standard. The algorithm has a block size of 128 bits and a key length of 256 bits. AE-256 is approved by the US government for "top secret" information.
What is helpful for professional users is also useful in the private area. Eventually it's all about privacy.
The recommended retail price of euro 49.00 including tax is close to nothing compared to the priceless value of some data.