The 3.5" Vertex 2 has identical operational specifications to the 2.5" version, other than the smallest capacity being offered on the 3.5" is 90Gb. The physical dimensions are the same as most traditional 3.5" drives in length and width, however the height is only 25mm or about half what a standard hard drive is. The case has a black plastic top with an aluminum bottom plate that is held in place with four screws. Note that this slimmer case replaces the previous design that was similar to OCZ's retired Colossus series SSD.
Opening the Vertex 2 up we find a large PCB that utilizes the full amount of space inside the enclosure. The SandForce SF1222TA3 controller is identical to that found on both smaller 2.5" versions of Vertex 2 and Agility 2, however the number of flash memory chips used has doubled to 32. The Micron 29F32G08CBABA is a 4Gb module which gives a total of 128Gb of capacity, with 8Gb or about 7% of that reserved for provisioning. This extra space is used by the controller for wear leveling, replacing bad blocks, etc. and is explained in greater detail in this article at Anandtech.
Next let's see about getting the Vertex 2 installed and configured.