Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: These can transfer at the 6bg/s SATA 3 rate?
Document: Gotta transfer data fast? Get one of these SATA Data Cable packs and you'll never need to take a coffee break while waiting for your data to transfer again!! !-)
Not really the fault of the product, but these are SATA v-I cables, and most modern motherboards and/or drives use SATA-II or SATA-III, so you get slower data transfer rates with them.
I've written a similar review for cables purchased through Amazon, and these work just as well. They latch onto the SATA ports well, stay in place, and obviously transfer data well since there haven't been any glitches (at least not due to faulty cables). Good price, too, especially since it was bundled in with a 2TB Western Digital HDD. Highly recommended.
My computer does not have enough SATA power connectors for two USB 3.0 cards plus an additional hard drive. These do the job.
Aren't these super cheap! But they work fine in my new build. CD/DVD drive and a new Samsung 64GB SSD got these. These were long enough in my mATX case. I keep a few of these around for switching my drives from one unit to the other or for new builds. These will not work for the new SATA III data protocol, though. You'll have to get SATA III cables for the newer MoBo designs and cases if you want to take advantage of a doubling in data transfer speed.
It is a SATA II cable (3 GB/s) which works as advertised, no complaints yet! Comes in normal plastic packaging and plugs into the connector just fine as it should! I use it for my Optical drives and my SATA II HDD!
Decided to build my own NAS using FreeNAS. Purchased 3 x Seagate 1TB Barracuda's and 2 x SATA Data Cable 2PKs. Worked with no problems. And now I have 2 TB Raid 5 NAS for around $150 :)
This product ships direct from China, so don't expect to get it right away. But if you can wait a couple weeks, it is an great value. I amazed that anything can be made & shipped half way around the world for less than two bucks. I'm not sure if it is forward compatible with SATA 2 or 3, but if you have a SATA 1 device, it will work fine.
There really isn't much to say about a SATA cable. It either works or it doesn't. This one works. I can't say it works better or worse than any other cable. In fact, I can't even say why I'm writing this review.After seeing several comments regarding my review, I have increased the rating from 3 to 5 eggs based on the low price. If it is inexpensive and it works, I guess that is good value.
I like these because they don't have the little clips that lock the cable into the motherboard. I don't like those metal clips, as they can cause damage to a motherboard or SATA device if the cable gets snagged. These are long enough, and not too long. The price seems a little steep for what they are, and I'm not sure they support SATA 3, 6GB/s, but it isn't like that matters, since you can't most hard drives and even SSDs don't go anywhere near that fast.
Answer: I'm looking for a cable right now and just finished doing research and there is no difference in speeds between different cables."No performance difference between SATA 3Gb/s and SATA 6Gb/s cables.""SATA revision designator on cables is mostly just marketing and has no bearing on the actual performance the cable can provide."http://www.pugetsystems.com/labs/articles/SATA-3Gb-s-vs-6Gb-s-Cable-Performance-Revisited-183/