ioDrive is a Solid-state drive

Solid-state drive

A solid-state drive , sometimes called a solid-state disk or electronic disk, is a data storage device that uses solid-state memory to store persistent data with the intention of providing access in the same manner of a traditional block i/o hard disk drive...

 created by Fusion-io

Fusion-io

Fusion-io is a computer hardware and software systems company based in Cottonwood Heights, Utah, that designs and manufactures what it calls a new memory tier based on NAND Flash memory technology...

 that connects to the PCI Express

PCI Express

PCI Express , officially abbreviated as PCIe, is a computer expansion card standard designed to replace the older PCI, PCI-X, and AGP bus standards...

 x4 slot on a Motherboard

Motherboard

In personal computers, a motherboard is the central printed circuit board in many modern computers and holds many of the crucial components of the system, providing connectors for other peripherals. The motherboard is sometimes alternatively known as the mainboard, system board, or, on Apple...

. The drives come in 160GB, 320GB, and 640GB capacities. Fusion-io claims speeds of up to 770 MB/s Read and 750 MB/s Write for their 160GB Model.

Hewlett-Packard

Hewlett-Packard

Hewlett-Packard Company or HP is an American multinational information technology corporation headquartered in Palo Alto, California, USA that provides products, technologies, softwares, solutions and services to consumers, small- and medium-sized businesses and large enterprises, including...

's IO Accelerator

IO Accelerator

The IO Accelerator is a type of solid-state drive offered in a mezzanine card form factor for HP's BladeSystem c-Class servers...

 is based on ioDrive technology from Fusion-io. The IO Accelerator is functionally identical to the ioDrive, and shares the same performance characteristics, specifically, but is designed in a mezzanine card form factor.