Best USB Gig-Ethernet adapter?


8 posts
by edgararroyo » 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!
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by Davinci » 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.
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by RaTTuS » Mon Aug 13, 2012 12:01 pm
use the existing NIC port .... job done
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by dom » Mon Aug 13, 2012 12:02 pm
Agreed. Built in ethernet should be well above the 40Mbit needed for Full Blu-Ray rips.
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by edgararroyo » 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.
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by nginx » 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.
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by Mike Philippens » 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.
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by wwinch » 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?
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