![]() The fastest SSD in this series will be the 240 GB model, which these days in regards to pricing also is a size we feel you should have in your PC or laptop as minimum. ![]() Over the a SATA3 interface you may expect read speeds up to 550 MB/s and writes up to 500 MB/s depending on volume size of the SSD. It's configured in a 1:1 style, this 240 GB has a 256MB cache whilst the 480GB version will have 512MB. In-between the different SKUs the RAM buffer will be different. ![]() On the next pages we'll be showing you some PCB photosl, and what you'll notice is that it carries DDR memory caches as well. This is an 8-channel NAND flash controller and the third revision from Marvell, it comes with a dual-core architecture that is very fast per channel. The 19nmNAND flash memory is tied towards the latest revision of the Marvell 88SS9190 (Monet) controller. TLC flash memory allows the memory cells to stack up vertically, which allows for more NAND cells in the same space, and that makes an SSD is cheaper to produce - the downside however is slower write performance. The Ultra II series has been released with Toggle NAND, flash memory from the new SanDisk 19nm node. The sample that has arrived in our secret test facility is the 240 GB version of the Ultra II series drives.
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