edgararroyo
Posts: 17
Joined: Mon Aug 13, 2012 5:39 am

Best USB Gig-Ethernet adapter? [obsolete]

Mon Aug 13, 2012 5:46 am

Hi, which is the best Gig-E USB adapter to use with the PI? (I know the USB will probably cap out at less than 400mb (40mb/sec transfers) but that should be enough to watch full 1080p on the PI using XBMC... I have tried Wifi and I never got good speeds so I am now looking for an alternative (usb gig-e)

Thank you for your help!

Davinci
Posts: 10
Joined: Sun Jul 22, 2012 11:02 am

Re: Best USB Gig-Ethernet adapter?

Mon Aug 13, 2012 11:53 am

Did you try the ethernet connection already? I think most HD streams don't need gigabit ethernet, as long as the compression is okay it should be round 40 Mbit.

User avatar
RaTTuS
Posts: 10592
Joined: Tue Nov 29, 2011 11:12 am
Location: North West UK
Contact: Twitter YouTube

Re: Best USB Gig-Ethernet adapter?

Mon Aug 13, 2012 12:01 pm

use the existing NIC port .... job done
How To ask Questions :- http://www.catb.org/esr/faqs/smart-questions.html
WARNING - some parts of this post may be erroneous YMMV

1QC43qbL5FySu2Pi51vGqKqxy3UiJgukSX
Covfefe

dom
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 5658
Joined: Wed Aug 17, 2011 7:41 pm
Location: Cambridge

Re: Best USB Gig-Ethernet adapter?

Mon Aug 13, 2012 12:02 pm

Agreed. Built in ethernet should be well above the 40Mbit needed for Full Blu-Ray rips.

edgararroyo
Posts: 17
Joined: Mon Aug 13, 2012 5:39 am

Re: Best USB Gig-Ethernet adapter?

Mon Aug 13, 2012 5:36 pm

Ok, will try and report back. I asked because of previous experience with Windows version of XBMC at 100mb connection would not be enough for some 1080p videos I have. 720p work fine though.

nginx
Posts: 41
Joined: Sun Dec 09, 2012 2:35 pm

Re: Best USB Gig-Ethernet adapter?

Tue Dec 25, 2012 8:11 am

100mbps network not enough to stream 1080p? The best BluRays I have seen have a bitrate around 50mbps. Usually its much lower than this. If a 100mbps network cannot stream your BluRay then the problem is somewhere else or perhaps other computers in the network are hogging the bandwidth.

Mike Philippens
Posts: 1
Joined: Sun Jan 12, 2014 4:25 pm

Re: Best USB Gig-Ethernet adapter?

Sun Jan 12, 2014 4:39 pm

RPi can handle MOST of the 1080p stuff over the network (wired ethernet 100Mbit). But I have a couple of BluRay rips that require more than the ethernet can handle. After extensive testing with various BRD's and re-testing the same content over a direct attached USB drive, I've concluded that it's the real hi-def video (30Mbit+) in combination with high bandwith DTS-HD-MA (4500Kbs+) that kills it. If I select the 'normal' DTS soundtrack, it can take a 4500Kbs track, but not much more.
When connected to the USB disk all tracks play flawless. No stuttering, no pauses.

I know it's just a few, but if you like good concerts and convert your own BRD to MKV so you can play 'm on the mediacenter it's a bit of a pain. I had this issue too when I still had a 100mbit network (with a XBMC on Windows system) so it's not a RPi fault. Apparently a 100mbit network doesn't provide the necessary bandwidth.

My setup is as follows:
Rpi with OpenElec and XBMC. XBMC is installed on an USB stik in a hub.
arm_freq=950
core_freq=450
sdram_freq=450
over_voltage=2
gpu mem=128

I connect to my NAS with NFS
Samba is switched off to preserve memory, as is everything that I don't really need.

wwinch
Posts: 1
Joined: Wed Feb 12, 2014 10:09 pm

Re: Best USB Gig-Ethernet adapter?

Thu Feb 13, 2014 4:28 am

I've got a similar setup (except using Raspbmc) and have similar experience (which led me to this thread). Some BD rips (either ISO or M2TS) stutter like crazy when streamed via ethernet. It seems to be those with DTS 7.2. Choosing a different audio track (5.1) improves it greatly, but still pauses frequently.

My desktop PC, which plays the files just fine using VLC when local, also has problems when streamed via gigabit Ethernet. One might surmise that i have a server bottleneck or other network issues. Except that I also have a Netgear NTV550 which plays the files just fine when connected to the same network cable. It also only has a 100Mb connection.

I've had some success (with non DTS 7.2) files by stripping out unused audio tracks.

Given that it's connected to a DTS 7.2 capable receiver, the RPi shouldn't be doing any decoding and should just shuttling the bits out the HDMI. Maybe there's an HDMI bandwidth limitation?

foresto
Posts: 14
Joined: Thu Feb 05, 2015 12:34 am

Re: Best USB Gig-Ethernet adapter?

Mon Feb 09, 2015 8:10 pm

Mike Philippens wrote:RPi can handle MOST of the 1080p stuff over the network (wired ethernet 100Mbit). But I have a couple of BluRay rips that require more than the ethernet can handle. After extensive testing with various BRD's and re-testing the same content over a direct attached USB drive, I've concluded that it's the real hi-def video (30Mbit+) in combination with high bandwith DTS-HD-MA (4500Kbs+) that kills it. If I select the 'normal' DTS soundtrack, it can take a 4500Kbs track, but not much more.
Mike, have you tried a Raspberry Pi 2 with the same Blu-ray discs? This issue is the main thing that's stopping me from buying a Pi, and if the new model solves it, I'd love to know about it.

Also, do you have a list of titles that trigger the problem, or some test files that others could use to reproduce it?

texy
Forum Moderator
Forum Moderator
Posts: 5160
Joined: Sat Mar 03, 2012 10:59 am
Location: Berkshire, England

Re: Best USB Gig-Ethernet adapter?

Tue Feb 10, 2015 8:36 am

Mike is highly unlikely to answer - the only time he visited this site (and logged on) was when he posted above, over a year ago.
I would start a new thread asking the question...

Texy
Various male/female 40- and 26-way GPIO header for sale here ( IDEAL FOR YOUR PiZero ):
https://www.raspberrypi.org/forums/viewtopic.php?f=93&t=147682#p971555

foresto
Posts: 14
Joined: Thu Feb 05, 2015 12:34 am

Re: Best USB Gig-Ethernet adapter?

Wed Feb 11, 2015 6:37 pm

Thanks. Good point.

User avatar
mikronauts
Posts: 2817
Joined: Sat Jan 05, 2013 7:28 pm
Contact: Website

Re: Best USB Gig-Ethernet adapter?

Wed Feb 11, 2015 7:58 pm

The Pi shares 480Mbps USB2.0 for:

- 10/100 lan
- any USB drives
- any USB peripherals

Even if you were able to get 40MB/sec, that would be a total for everything, and if you use a USB disk, you are more likely to only get around 30MB/sec to share between Ethernet and the USB disk. Make sure you use extfs3 or extfs4 on the disk, as FAT is significantly slower.
edgararroyo wrote:Hi, which is the best Gig-E USB adapter to use with the PI? (I know the USB will probably cap out at less than 400mb (40mb/sec transfers) but that should be enough to watch full 1080p on the PI using XBMC... I have tried Wifi and I never got good speeds so I am now looking for an alternative (usb gig-e)

Thank you for your help!
http://Mikronauts.com - home of EZasPi, RoboPi, Pi Rtc Dio and Pi Jumper @Mikronauts on Twitter
Advanced Robotics, I/O expansion and prototyping boards for the Raspberry Pi

Return to “General discussion”