Prototype SSD using JMF612
Performance questions linger

JMicron is a company that makes a lot of different controller chips, and their products have been used successfully for many years by companies like ASUS to add functionality to their products. However, the company has run into a rough patch due to random read and write latency problems with its SSD controllers.

The company came up with the JMF602B NAND flash controller to overcome some of those problems, but it was just a stopgap solution. They've been working on a new controller chip that would offer similar performance to the highly touted Barefoot controller made by Indilinx, but at a much lower cost. The new controller is also able to use 3xnm NAND flash, thus lowering the cost of SSDs using those smaller chips.

The first SSDs to use the new JMicron JMF612 flash controller were supposed to have been shown off at Computex in June. However, some issues came up that the company has been quietly resolving since then, and it appears that the chip is now in mass production.

The first SSDs to use these chips are from a little known company named Active Media Products. They are paper launching their Predator-X7 series of SSDs featuring the JMF612 along with 128MB of DRAM cache. There aren't a lot of specs available, but the company is promising sequential read speeds of up to 230 MB/s and write speeds of up to 180 MB/s. This falls short of the 250/200 MB/s sequential read/write rates that JMicron provided to DailyTech in May.

The big news though is that SSDs using the new controller are coming, and there will probably be faster implementations at prices that will challenge Intel and OCZ. Lower SSD prices are good for the consumer, but questions still remain about availability and performance.

Active Media is promising availability in November, and that's when we'll get our first reviews.

Part Number


Street Price


32GB 2.5-inch SATA-II JM612 SSD



64GB 2.5-inch SATA-II JM612 SSD



128GB 2.5-inch SATA-II JM612 SSD



256GB 2.5-inch SATA-II JM612 SSD



"Intel is investing heavily (think gazillions of dollars and bazillions of engineering man hours) in resources to create an Intel host controllers spec in order to speed time to market of the USB 3.0 technology." -- Intel blogger Nick Knupffer

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