Finally after buying a SSD (the brilliant Samsung 840 Pro 256GB) this adapter is needed in the meantime "orphaned" to connect three HDD's and to use them for various purposes. If the laptop (here a Latitude E6410) has the infamous eSATAp port, is far from self-explanatory (Plug and Play). Second attempt because after the first application, a portion of the terminal (lateral guide pin) was broken. Thus, a return was required. As usual with Amazon (thankfully), the replacement came very quickly. Since then, increased caution prevails in the use and all is well. The transfer speeds are so convincing that now regular back-ups of the NAS (in addition to RAID 1 for the safe) are no more spoiled. One of the HDD's was equipped with a Windows 8 upgrade. If it is connected, you can select (at boot) easily between two operating systems without having to actually replace the hard drive in the computer. Last but not least the good price-performance ratio makes this accessory a recommendable purchase.
