SATA and eSATA
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- Опубликовано: 14 июл 2024
- In this video from ITFreeTraining I will look at SATA and eSATA. SATA has become the dominant connection used to connect internal storage devices in computers so it is important to know about it.
Download the PDF handout: itfreetraining.com/handouts/ap...
PATA/SATA
0:11 To understand SATA better, let’s first look what was used before SATA. Parallel AT Attachment or PATA was first developed in 1986. It used a 40-pin ribbon cable that could support two devices on the same cable. The cable transferred 16 bits at a time in parallel. It was powered by the Molex power plug. Traditionally the Molex connectors were white in color. Generally, you will find that power supplies sold on the market today will have a few Molex power connectors.
The cable itself has a maximum length of 18 inches or 457mm. Although not a bad length, in modern computers with large expansion cards and other objects in the way, this can make it difficult to connect devices to the cable. This gets more complex if you want to remove a device from a computer. Due to its short length, you may need to disconnect the cable from the computer or disconnect the cable from another device to remove the device from the computer. This makes it harder to plug in and unplug devices.
The ribbon cable is also quite bulky and thus can block air flow. The PATA cables were the dominant cable until the year 2000 when the SATA cable was released. SATA stands for Serial AT Attachment.
The SATA connection uses a 7-pin data connector and a 15-pin power connector. It increases the length of the cable to 3.3ft or 1 meter. There were a lot of small improvements; the biggest improvement was that SATA supports hot swapping. Hot swapping is being able to plug in an unplug storage devices without having to switch the computer on or off.
Hot swapping requires a few things. First, the computer or the device not being damaged when it is installed. This can occur with electronics when something is first plugged in, as there may be a rush of power to the device. The second thing hot swapping requires is for the device and the operating system to be able to recognize a device was installed or removed. Although hot swapping is officially supported, it sometimes won’t work. For hot swapping to work, it requires the motherboard, BIOS and operating system to support it. You won’t damage anything by plugging it in and giving it a go, and if it fails to work, give the computer a restart and it should detect the device.
Let’s have a closer look at how SATA works.
Data Connector
2:35 The SATA data connector is an L-shaped connector. This prevents it from being plugged in the wrong way. The data connector has seven pins. The data is transmitted using differential signaling. Differential signaling uses two wires to transfer data. This helps reduce noise and data corruption at high speeds - something that is essential when you are using serial communication. The other pins in the cable are ground pins.
Since two pins are used for transmitting data and two for receiving data, this essentially means that SATA has one data channel. When differential signaling is used and there is bi-directional transfer like this, it is often referred to as a lane of data. So essentially SATA supports one lane.
There are other data cables on the market that use more than one lane. This is one of the reasons, which I will cover in more detail later in the video, why it is unlikely in the long term that SATA will continue to be used.
SATA Power Connector
3:36 The SATA drives use a new power connector. Like the data connector, this connector is an L-shaped connector, so you won’t be able to plug it in the wrong way. This power connector has 15 pins. It contains 12 and 5 volt pins that were traditionally provided by the Molex power connector. However, it also adds a 3.3 volt pins.
Since it contains an extra voltage, if an adapter is used to convert Molex to SATA power, it will not include the 3.3 voltage. However, this is generally not a problem because very few storage devices use the 3.3 voltage option.
We know that SATA supports hot swapping, so next I will look at how this is supported, particularly now that we have up to three different voltages on the one power connector.
Description to long for RUclips. Please see the following link for the rest of the description. itfreetraining.com/ap/1c35
References
“The Official CompTIA A+ Core Study Guide (Exam 220-1001)” Chapter 3 Lesson 10783-11012
“CompTIA A+ Certification exam guide. Tenth edition” Pages 298-303
“Serial ATA” en.wikipedia.org/wiki/Serial_ATA
“eSATAp” en.wikipedia.org/wiki/ESATAp
Credits
Trainer: Austin Mason ITFreeTraining.com
Voice Talent: HP Lewis hplewis.com
Quality Assurance: Brett Batson www.pbb-proofreading.uk
I'm in my mid 60's now & very keen on learning about modern Technology, especially computers & desktop PC's. Although I still follow many of the other high tech you tube video's, which are v informative but (imo) somewhat biased towards gaming etc. Although V knowledgeable & often quite entertaining (Jayzee etc.) I find them sometimes a bit unclear as all I really want to know are the facts. For that reason I honestly think your videos are the best of the best as they're so well presented, clear & informative. Many Thanks to you & your Team. Regards, Ray.
Excellent. Just what I have been looking for. Thanks for your channel!
Glad to help!
Thank you very much for making a video like this, because of this you can help more people specially an i.t. beginners with free handouts
Thanks, glad you liked it.
Thank you. I've been waiting to purchase one of these new eSATA drives I have been hearing about for years, and now I am armed with the knowledge to purchase the right one.
Seriously though, I appreciate how accessible you make this information. Often I'll point someone to one of your videos instead of trying to explain it myself.
@@tonydarre9954 Thanks very much. Glad to hear your like the videos.
❤️
Informative from you as usual, thank you.
Thanks for watching.
Nice Video ! Everything I wanted to know about eSATA and More !
Glad it was helpful!
I like it before watching as I know content is always good.
Thanks for watching.
Risky
Thank you very much for your helpful videos!
Glad you like them!
Thanks, your videos are very good. Lots of information.
Glad you like them!
Great video. Very informative!
Glad it was helpful!
This video is just great! Thanks
Glad you liked it!
If I remember rightly, the Amiga Computer used Sata before IBM pc's. I was using sata for my amiga harddrive around the time of the IBM 386 . Cheers
The last Amiga was released before the SATA standard was complete. So I doubt it was natively support and Amiga SCSI based. However, there may have been interface cards released after that. This thread explains it.
www.amibay.com/threads/sata-controller-for-amiga-computers.2441305/
A most superb video sir,very helpfull indeed,thanku.steve from the uk
Glad it was helpful!
100th comment.
Anyways, this was so informative that I really have no words. Wish you good luck and hope to see more such contents in the future.
I really appreciate how informative and comprehensive this video was. This was my first video of yours. I have immediately liked and subscribed. and I will watch all of videos too!
Thanks very much. Glad you like the videos. We should start releasing the new A+ course shortly. Hopefully you like it.
Thanks for watching.
Perfect video
Thank you.
Very well done videos!
Thank you very much!
Nice bit about NVME vs sata at the end
Thanks very much.
Amazing content , plz upload videos frequently like once a week
Thanks, we are working hard to get some new videos done.
this video is really easy to understand. thanks sir🙏
Thanks for watching.
Excellent. thanks for sharing
Thanks for watching!
Thanks for the great and informative video!
Glad it was helpful!
Great👏
Thanks for watching.
THANK U VERY MUCH... VERY GOOD VEDIO
Most welcome
i used to have an old Toshiba satellite with an eSATAp connector, only years down the line did i realise that it also supported USB
They don't make it very clear in sometime. At least now you know you have another USB port if you need it.
I recently purchased a brand new Synology RaidStation NAS box which comes with 8 x 3.5” drive bays. Because I needed more storage, I also purchased a 4 bay expansion box. Imagine my surprise when the main unit connected to the expansion unit using an eSata cable.
To add insult, the cable that came with the unit was defective and I had to buy a replacement.😢
Hope you did not pay too much for it. It is become more common with NAS and related devices not to be as good as they look. Using software RAID instead of hardware etc.
wawo great lesson 👍
Thanks for watching
Sata actually came out in 2003.
Yeap, our mistake, it was announced in 2000 and released in 2003.
Hello po host sending my love and support to your house God Bless you po keep safe.
Thank you.
Thanks
Thanks for watching.
thanks sir
Most welcome
Outstanding!
Thank you.
Hi Austin, thnxs a million for this video. I'm nearing 70yrs and plan on building my first PC. Still in learning phase. Now compiling an URL database with all YTube pcbuild and tech-info video's I can find. This one comes on top. thnxs. Planning my PC: Gigabyte MB550M , CPU 5600X, GPU (like GTX1660), M2SSD, RAM. I want to take from my old PC: DVD/RW 10yrs old, HDD 5 yrs old, SATA SSD 1 yr old. (plan to build PC with only M2 first, than install WIN10 from my WIN-USBflash.) B550M has 4 SATA3 6GB headers. How do I data-connect my 'old' devices? what device in which header? Your answer will be so much appreciated.
Thanks, glad you like the video. SATA is backward compatible so you can plug it straight in and it will work. If the DVD/RW is SATA it will also plug in. If it is IDE (Big connector) than the motherboard will need to support it (Probably does not now days) otherwise you can purchase an expansion card to add this.
I would install the operating system on the M.2 first, once the computer is up and running I would add your old drives. These drives should appear in the operating system as data drives. Just make sure you computer is configured to boot of the M.2 drive.
I've seen a lot of motherboards with a SATA Express connector, but I haven't seen the SATA Express cable and SATA Express drives for sale. Is there somewhere I can find these devices for purchase?
Is there any adopter that can connect USB 3.0 port to SATA Data connector cable?
Sounds weird but my front I/O panel uses SATA to read USB drives.
I think you may have something like this. Front IO panel will have multiple cables that connect to different parts of the motherboard.
www.amazon.com.au/SIDAKE-Multifunctional-Dashboard-Media-Reader/dp/B092D4WWT9
There are adapters that will convert USB 3.0 to SATA.
As long as CD/DVDs are in use SATA will NOT go away!
I tend to agree, but I think maybe U.2 connection may replace them. But, we will have to wait and see.
Hi, Thanks for your video. I have a simple question : All my SATA connections are used, but I still have two free eSATA on my MSI B150M. I want to plug an extra intern SATA SSD: may I just plug it in the eSATA (with a dedicated cable), and it will work the same way?
SATA SSD and SATA hard disk use the same SATA interface. Thus, your eSATA connection will work the same way with a SATA SSD as it will with a SATA hard disk.
just use sata to usb cable
Hello po host watching sending my love and support to you God Bless you po keep safe.From #Nonoy Show TV
Thanks very much.
💓🌼💓
Thanks for watching.
this is interesting, i got a samsung laptop from the year 2012 and it already had SATAe
edit: nevermind... my laptop has eSATA 😂 i dint think of them just switching letters and creating new things haha
ANOTHER edit: Yoooo this is so cool, i have the eSATAp connector which you can also plug USB in 😱 i really wondered what the plug was for so i searched it and got to this video and damn this is really cool, Thankssss
That is good to hear, looks like you got everything included in that port.
Interesting video. Can anyone recommend an external power supply for 3.5" SATA disk? It must ble 240v and supply 12v/5v. Thanks!
You would usually purchase an adapter that have a power supply. You could in theory use your own power supply as long as it outputs the required voltages.
12:22 some esata can give 12and5v power when you set your BIOS
Good to know. Thanks.
my eSATA in not working, plz help!
motherboard: Intel DH67BL
processor: Intel 2nd gen
OS: Windows 10 64-bit
Cable: SATA to eSATA with USB power
Drive: WD 1TB HDD 2.5"
please let me know if I need to install any additional driver to make it work.
Thanks in advance.
You should not need to install an additional device driver to get it to work, it however may not be enabled in your BIOS.
motherboard USB 3.2 Gen 2X2 Type-C and corsair 5000D USB 3.1 Type-C Can you connect?
Yes you can. USB is backward compatible.
Yeah, SATA’s been on its way out for a while. M.2 NVME is just plain better in almost every way. I got rid of my last spinning drive like a year ago because ssds are so cheap there’s no longer any reason to keep them around.
The only reason nowadays if you need a lot of space. But even 1TB NVMe is affordable nowadays.
what should i buy esata or sata
esata not the popular any more because most people use USB. You will probably find that modern motherboards will support either, you may just need to enable esata in the BIOS before you can use it. This may reduce the speed.
Your picture of a PATA cable was wrong. That was a 80 wire cable a different standard. That was a Ultra ATA2 a different standard that is twice the speed
I appreciate your feedback. I apologize for any confusion. The PATA cable is the modern name covering all the standards so could be either cable. If we make a another video covering PATA we will make this point clearly. Thanks for pointing it out.
"You'll most likely see more nvme connections in the future."
Only 3 years and my laptop only has nvme connectors, there is no sata in it.
We are seeing that in laptops. Desktop most like SATA will remain for a while yet.
I'm still waiting for a usb-c connector for a replacement of sata.
USB-C is slow to take off, but it is getting there. Some hard disks on the market use USB-C.
Every one always tells you the S and P but never the AT
It is serial advanced technology attachment
@@anishnarayan2326 yes I knew that, just no video ever tells you Advanced Tech, and Ive never been specifically taught it, I started in IT back in '99 when the keyboard was an AT and serial mouse :-)
@@TheRealKaiProton damm. Sorry man.
@@anishnarayan2326 Yup. Im old!
my laptop has an eSATAp, but it's marked as eSATA.
Sometimes the marking on the laptops is not 100% correct. It can be a bit annoying.
What about u.2
It is not covered in the current A+ objectives, but something that is becoming more popular so most likely look at it later on.
they should hire the people who named SATA generations to also name DDR generations, man DDR makes no sense at all