For me the reasons why almost everyone who can should be moving to SATA boil down to just these two: This allows each device on the cable to transfer data at its own best speed. It is attached normally on the gray and black connectors. No interfacing chips or circuitry are required, other than to directly adapt the smaller CF socket onto the larger ATA connector. This front-edge position makes extension out the back to an external device even more difficult.
In later versions, faster Ultra DMA modes were added, requiring new wire cables to reduce crosstalk. There is an attempt limit, normally set to 5, after which the disk must be power cycled or hard-reset before unlocking can be attempted again. Motherboard vendors still wishing to offer Parallel ATA with those chipsets must include an additional interface chip. But if the hard drive in question is also expected to provide good throughput for other tasks at the same time, it probably should not be on the same cable as the optical drive. For example, when copying data from an optical drive to a hard drive such as during software installation , this effect probably will not matter. Please help improve this section by adding citations to reliable sources. It is attached normally on the gray and black connectors. The blue host connector has the socket for pin 34 connected to ground inside the connector but not attached to any conductor of the cable. For example, any removable media device needs a "media eject" command, and a way for the host to determine whether the media is present, and these were not provided in the ATA protocol. Even with older adapters without independent timing, this effect applies only to the data transfer phase of a read or write operation. A useful mental model is that the host ATA interface is busy with the first request for its entire duration, and therefore can not be told about another request until the first one is complete. With the wire cable, it was very common to implement cable select by simply cutting the pin 28 wire between the two device connectors; putting the slave device at the end of the cable, and the master on the middle connector. A User Password and a Master Password. The pins are closer together and the connector is physically smaller than the 40 pin interface. In practice, of course, protocol overhead reduces this value. Installing the cable backwards with the black connector on the system board, the blue connector on the remote device and the gray connector on the center device will ground pin 34 of the remote device and connect host pin 34 through to pin 34 of the center device. Slightly cheaper where I am anyway. Getting rid of the floppy connector, I believe can be worked around by getting a USB attached floppy drive. The impact of this on a system's performance depends on the application. The ATA-4 and subsequent versions of the specification have included an "overlapped feature set" and a "queued feature set" as optional features, both being given the name " Tagged Command Queuing " TCQ , a reference to a set of features from SCSI which the ATA version attempts to emulate. SATA cabling is just so much easier to work with! From ATA-2 on, an "identify drive" command was implemented that can be sent and which will return all drive parameters. You can not do that! This has long been seen as a major advantage of SCSI. Either or both may be set; there is a Master Password identifier feature which if supported and used can identifies with out disclosing the current Master Password.
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SATA vs NVMe - $40 Budget SSD Comparison - Which Should You Buy?
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