Toshiba's 320GB 2.5-inch hard drive: a world's best for laptops
Step aside Fujitsu, there's a new 2.5-inch hard disk champ on the block by way of Toshiba. A world's first 320GB 2.5-inch drive, in fact. The MK3252GSX drive spins a pair of 160GB platters at 5,400rpm with an 8MB buffer …
Context & Ripple Effects
The 2.5-inch capacity crown has been changing hands quickly. Computerworld flagged the trajectory toward terabyte-class laptop drives back in July 2006, and just six weeks ago Fujitsu took the lead with a 300GB mobile HDD running at a slow 4,200rpm.
First-order effects
- Toshiba takes the 2.5-inch capacity lead from Fujitsu with the dual-platter MK3252GSX, and does it while spinning faster — 5,400rpm versus Fujitsu's 4,200rpm — so laptop buyers get both more space and better throughput.
- Notebook OEMs designing late-2007 machines gain a drop-in option for 320GB in the standard 2.5-inch bay without moving to larger or hotter drives.
Second-order effects
- Fujitsu, displaced barely six weeks after its own record, faces pressure to answer with a denser platter of its own or cede the premium-capacity slot in OEM drive slots to Toshiba.
- The speed-plus-capacity combination squeezes pricing on the 250–300GB tier, since last cycle's flagship now sits below Toshiba's new top end on every spec.
Third-order effects
- If each vendor keeps answering the other's record within weeks, per-gigabyte pricing in mobile storage keeps falling and 'largest laptop drive' becomes a rotating marketing claim rather than a durable advantage — with the eventual ceiling set by areal density limits rather than platter count.
The trend: Mobile hard-drive makers are locked in an accelerating platter-density arms race, trading the 2.5-inch capacity record on a cadence of weeks as laptops close the gap with desktop storage.