SanDisk Extreme II 120GB
SanDisk delivered three drives, one of each capacity size, but we didn't receive the retail package to show today. We don't expect much of a change from the Ultra Plus or original Extreme. This is a 7mm z-height product with a metal base and a plastic top cover.
The capacity size, model and serial number are all located on the back of the drive.
The 7mm z-height, 2.5" form factor uses the same mounting points on the bottom and sides as traditional notebook drives that are 9.5mm tall.
The SATA power and data connectors are also the same as standard notebook drives. The Extreme II will fit in your notebook and many ultrabooks without issue. Desktop users can purchase the Desktop Replacement Kit and receive a desktop adapter bracket that puts the drive in a standard 3.5" HDD bay.
Here we get our first real shot of the SanDisk Extreme II. The 120GB is the only drive with just four NAND flash chips. The higher density in each chips is part of the reason why we're seeing 120GB performance drop off so much with many of the SSD's we've tested lately. Without lanes to more chips, interleaving is reduced. We'll talk more about this in the Final Thoughts and how SanDisk worked around this issue.
Although Extreme II doesn't use the pads on the back of the PCB for host power fail protection, I wouldn't be surprised to see this product tip up at some point in time with more enterprise features. The Cxxx letter / number designation means capacitor and Extreme II could use a large number of capacitors if SanDisk wanted to enable the feature. It's common to see consumer SSD's share the same PCB with enterprise parts.
As we mentioned in the introduction, the Extreme II uses the Marvell 88SS9187 controller. This is an 8-channel design, the same used Plextor's M5 Pro and M5 Xtreme as well as Crucial's M500.
Buffering data is a Samsung 1GB DDR3 DRAM chip.
The star of the show, as you will soon see.