The WD Black2 sports both a 120GB SSD and a 1TB HDD in a single package. Unlike other hybrid configs such as Seagate's Momentus XT which combine ample magnetic storage with a little NAND, the Black2 crams both technologies into one drive too, but it simply does what desktop users have been doing for years by making the flash portion a primary boot drive with the disk serving as bulk storage.
The DS2413+ is Synology's newest twelve-bay DiskStation NAS for small to medium sized businesses who need loads of storage. Along with supporting up to 48TB worth of drives out of the box, the DS2413+ can be paired with the company's DX1211 expansion enclosure that houses an extra 12 drives, doubling the maximum storage capacity of the base unit to a whopping 96TB.
We should also make a quick note before you get to the end and scoff at the price: the DS2413+ isn't for average home users. It's retailing for $1,700 without drives or the 12-bay expansion. With that in mind, let's see what the DS2413+'s upgrades offer.
TigerDirect offers the Western Digital 1TB Elements SE Portable USB 3.0 External Hard Drive, model no. WDBPCK0010BBK-NESN, bundled with Total Defense Premium Internet Security for $104.99. This $70 mail-in rebate cuts it to $34.99. With around $4 for shipping, that's $0.04/GB...