The solid- state drive (SSD) capacity and random-access memory (RAM) in the base configuration of the Modbook Pro are also being doubled.

ENGADGET: Baseline Modbook Pro gets its RAM, storage and screen sensitivity doubled, stays at $3,500

World's First 480GB mSATA Solid-State Drive: Mushkin's 480GB Atlas mSATA Solid State Drive, built on the SandForce SF-2281 SSD processor with unthrottled IOPS, was first announced at Mushkin's December 4, 2012 press event, and will be officially released at CES 2013.

ENGADGET: Mushkin launches 'next generation' USB 3.0 drive, promises 300MBs read/write speeds

The Z Series comes exclusively in solid state drive (SSD) models-up to 512GB.

ENGADGET: Sony bumps out Vaio Z, F, W and Y series laptops

Intel announced a new SATA interface enterprise solid state drive (SSD) that uses 25 nm multi-level cell flash memory (this is 2 bit per cell technology referred to as MLC).

FORBES: New Technology and Investment Opportunities at the 2011 Intel Developers Forum

The standard internal storage option on the Modbook Pro will be a 64GB solid-state drive, with upgrades possible to increase internal SSD storage to 480GB.

ENGADGET: Modbook Pro to launch with SSD storage, up for pre-order October 3rd

"Toggle DDR provides a faster interface than conventional NAND using an asynchronous design, delivering the benefits of high-speed data transfer to a wider market, such as for solid state drive (SSD) applications including enterprise storage, mobile phones, multimedia terminals and consumer products, " said Masaki Momodomi, Technical Executive, Memory product, Toshiba Corporation.

ENGADGET: Samsung and Toshiba double-down on 400Mbps DDR 2.0 NAND flash memory standard