FS: Seneca J6412 Fanless Network / Media Appliances

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BlueFox

Legendary Member Spam Hunter Extraordinaire
Oct 26, 2015
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Zelle preferred as PayPal fees add up. Will also entertain trades since I like new toys and rotate through hardware regularly, though currently not in need of a whole lot. I think my reputation should help: Heatware

Local pickup available in Phoenix. Will ship internationally.

Like the title says, have another set of appliances sell. They are Seneca Element systems (datasheet). You get the following:
Fanless chassis for silent operation
Intel Celeron J6412 CPU
4GB DDR4 3200 (upgradable and 2nd slot open)
64GB M.2 Transcend industrial SSD (with heatsink that connects to chassis)
2 x Intel NICs
2 x HDMI 2.0
RS232

Additionally, if you want to upgrade the system, you have the following to work with:
Mini-PCIe slot (also supports mSATA per toggle in BIOS)
M.2 E-key slot for WiFi (with spots for antennas)
Header for analogue audio (with spot on front)
8-pin GPIO header (with spot on side)
SATA power header
USB 2.0 header

They are brand new in box and only manufactured about a year ago by a reputable US company with considerably higher quality than anything you'd find on Aliexpress. You also get a mounting bracket (which supports VESA and surface mounts). No power supply, but anything 12V will do. Label calls for 5A, but that's unrealistically high. I'm using a 2A power supply personally and would go with 3A if I had a bunch of USB devices or upgraded to a high performance NVMe SSD.

Have a few of these around the home, including one as my HTPC (running LibreELEC) and have been pretty happy with them overall. Power usage is next to nothing unsurprisingly.

$89 each shipped domestically

 
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Bjorn Smith

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Sep 3, 2019
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Too bad you dont have power supplies for these - otherwise I could have been tempted.
They would make a nice firewall or media player
 
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BlueFox

Legendary Member Spam Hunter Extraordinaire
Oct 26, 2015
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Too bad you dont have power supplies for these - otherwise I could have been tempted.
They would make a nice firewall or media player
Well, given they are new in box and there is no room for anything else, I thought would let people use their own. 12V 5.5x2.5mm power supplies are under $10 shipped on eBay and if you're anything like me, you have spares already. Better yet, use a USB-C power brick like I do with one of these: USB C Type-C 9V 12V 15V 20V PD Trigger 4ft Power Cable 5A DC 5.5 x 2.5mm | eBay
 
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BlueFox

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Sold a few, but still have more available.
 

Greg_E

Active Member
Oct 10, 2024
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I wish the processor was a little faster, would be good replacements for a few n5105 based mini-PC that I use for things.

As far as the power supply goes, lots of cheap POE+ to 12v 5.5x2.5 adapters out there, again using these with my Mele Quieter 3q mini-PC to power them when possible (and a DC to USB C adapter), only needs 2a on these Mele devices and I'd guess the Seneca are similar power draw.

I'll have to think about this, a LibreElec box might be fun to play with, didn't manage to get it going on an RPi4, maybe on an x86 I would have more luck. I have a small pile of 4GB modules and small pile of WiFi modules I could use (out of HP T740)....
 

BlueFox

Legendary Member Spam Hunter Extraordinaire
Oct 26, 2015
2,520
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I wish the processor was a little faster, would be good replacements for a few n5105 based mini-PC that I use for things.

As far as the power supply goes, lots of cheap POE+ to 12v 5.5x2.5 adapters out there, again using these with my Mele Quieter 3q mini-PC to power them when possible (and a DC to USB C adapter), only needs 2a on these Mele devices and I'd guess the Seneca are similar power draw.

I'll have to think about this, a LibreElec box might be fun to play with, didn't manage to get it going on an RPi4, maybe on an x86 I would have more luck. I have a small pile of 4GB modules and small pile of WiFi modules I could use (out of HP T740)....
I tested power draw for these last night for someone and saw only 6.2W at the wall with my kill-a-watt idle with nothing attached, so, PoE should work quite well.

As for LibreELEC, been using one as my HTPC with my projector and it has been working great there. No complaints and no noise.
 

BlueFox

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How hot do these get without fans?
Barely warm. CPU won't overheat and the chassis doesn't get that hot. The exterior on one of mine is only 12C above room ambient currently.
 
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abq

Active Member
May 23, 2015
729
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Zelle preferred as PayPal fees add up. Will also entertain trades since I like new toys and rotate through hardware regularly, though currently not in need of a whole lot. I think my reputation should help: Heatware

Local pickup available in Phoenix. Will ship internationally.

Like the title says, have another set of appliances sell. They are Seneca Element systems (datasheet). You get the following:
Fanless chassis for silent operation
Intel Celeron J6412 CPU
4GB DDR4 3200 (upgradable and 2nd slot open)
64GB M.2 Transcend industrial SSD (with heatsink that connects to chassis)
2 x Intel NICs
2 x HDMI 2.0
RS232

Additionally, if you want to upgrade the system, you have the following to work with:
Mini-PCIe slot (also supports mSATA per toggle in BIOS)
M.2 E-key slot for WiFi (with spots for antennas)
Header for analogue audio (with spot on front)
8-pin GPIO header (with spot on side)
SATA power header
USB 2.0 header

They are brand new in box and only manufactured about a year ago by a reputable US company with considerably higher quality than anything you'd find on Aliexpress. You also get a mounting bracket (which supports VESA and surface mounts). No power supply, but anything 12V will do. Label calls for 5A, but that's unrealistically high. I'm using a 2A power supply personally and would go with 3A if I had a bunch of USB devices or upgraded to a high performance NVMe SSD.

Have a few of these around the home, including one as my HTPC (running LibreELEC) and have been pretty happy with them overall. Power usage is next to nothing unsurprisingly.

$89 each shipped domestically

...These look perfect for a garage based firewall. Would you happen to have e-copy of the manual? Does manufacturer offer any BIOS or other software updates? Best Regards, ABQ
 

BlueFox

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Oct 26, 2015
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...These look perfect for a garage based firewall. Would you happen to have e-copy of the manual? Does manufacturer offer any BIOS or other software updates? Best Regards, ABQ
No copy of the manual, though I did save the datasheet. Not sure why you'd need it however. The unit is basic and pretty self-explanatory.

As for updates, since Arrow bought Seneca, not much there either. Worth pointing out that these systems were meant to go in industrial or digital signage settings and not be touched for years, so, updates for platforms like this are sparse to begin with.

Edit: Forgot the motherboard is Gigabyte OEM, so you can always reference their stuff if you want.
 
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BlueFox

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Kind of wish it had a second nvme or even m.2 sata slot.
There is a second M.2 slot. Generally meant for WiFi, but I can test an SSD in there if you'd like. Let me know if that would be of interest.

If that works, that means you can have 3 SSDs in there (mSATA being the 3rd).
 

BlueFox

Legendary Member Spam Hunter Extraordinaire
Oct 26, 2015
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I'd be interested in one of these- looks ideal for sitting in my living room next to my 'legacy' hi-fi system. Can you quote for shipping to Australia?
PM sent.
 

vraptor

New Member
Jan 18, 2026
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I saw your listing on eBay, went to research these and found this thread, so I registered. I'd like to purchase 2 for an HA firewall pair if they are still available. I can do Zelle. My eBay handle is "utahraptor" for buyer feedback if you need it.

TIA--
=V=