Intel Motherboards - X99E-itx/ac eSATA has port multiplier?

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X99E-itx/ac eSATA has port multiplier?

Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=5855
Printed Date: 27 Jul 2025 at 4:09pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: X99E-itx/ac eSATA has port multiplier?

Posted By: Doug-Jensen
Subject: X99E-itx/ac eSATA has port multiplier?
Date Posted: 16 Aug 2017 at 2:22am

" rel="nofollow - I see no mention of port multiplier functionality for this board--does that mean it doesn't include that? Since this itx board has only one PCie socket which the video carn is usually in, a port multiplier would have to be external somehow. Thank you,

Doug

Replies:

Posted By: parsec
Date Posted: 16 Aug 2017 at 11:51am

Doug-Jensen wrote:

" rel="nofollow - I see no mention of port multiplier functionality for this board--does that mean it doesn't include that? Since this itx board has only one PCie socket which the video carn is usually in, a port multiplier would have to be external somehow. Thank you,

Doug

Intel SATA chipsets have never supported port multipliers. I've checked on this over the years several times for various chipsets in Intel's datasheets.

This is from the X99 datasheet, which contains multiple references to SATA port multipliers and their related registers, etc. I copied the two lines below from that document:

The PCH SATA controller does not support Port Multipliers.

The PCH sSATA controller does not support Port Multipliers.

You can check that document yourself, here:

https://www.intel.com/content/www/us/en/chipsets/x99-chipset-pch-datasheet.html" rel="nofollow - https://www.intel.com/content/www/us/en/chipsets/x99-chipset-pch-datasheet.html

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