For your consideration PowerDsine 3501G (PD-3501G/AC) Power over Ethernet POE injector.
Unit comes with power cord.
Unit powers on (see pic. 10,11,12).
I have not done any other tests.
Unit is in used condition.
I have no knowledge about this item....I even don't remember where I got it.. Just cleaning my shelfs.
Auction starts 0.99 plus shipping .

Please , refer to pictures, I tried my best to show every side and all details, good and bad.
You will get what on pictures, take a good look and made your judgment. 

NO RETURN.
If you have question, ask BEFORE, not after.

From the web:

PowerDsine's 3501G Power over Ethernet (PoE) single port Midspan (PoE injector) offers a compact and cost effective, fully IEEE 802.3af compliant solution for IP phones, WLAN access points, network cameras and other IP terminal installations.

The 3501G PoE midspan offers compact, affordable and reliable power over standard Ethernet cables, leaving network infrastructure completely unaltered.

With the midspan's plug-and-play installation, they are easily and cost effectively implemented leveraging an existing Ethernet infrastructure while at the same time providing the assurance of a future proof network.

  • Safe & reliable power over existing Ethernet infrastructure
  • Stackable and compact
  • Cisco and legacy PoE support*
  • Plug-and-play installation
  • Guaranteed uptime
No. of Ports1
Pass Through Data Rates10/100/1000 Mbps
Power over Ethernet OutputPin Assignment and Polarity:
4/5 (+), 7/8 (–)
Output Power Voltage: 48Vdc
User Port Power: 15.4W (Guaranteed)
Input Power RequirementsAC Input Voltage: 90 to 264 Vac
AC Input Current: 0.5A @110-240Vac
AC Frequency: 47 to 63 Hz
Dimensions53 mm (W) x 32.5 mm (H) x 140 mm (L)
2.09 in. x 1.28 in. x 5.5 in