Have this adapter in two old desktop computers in use, where now WIN XP runs on Intel SSDs. After I had tried two other adapters with unsatisfactory results, gave me the Digitus the desired result. The SSDs are as DMA 6 recognized and reach in HD Tune a data throughput of about 90 MB / s. The Trim function of the SSD Toolbox (not as with any other adapter) works. The computers now have boot and load times, which can be compared with my multi-core computer with Win7 64. Small smear: the parallel operation of a slave on the same IDE controller prepares me trouble for me is no reason for devaluation.