The 3Com 3CNJ100 Network Jack easily and attractively expands a single Ethernet or Fast Ethernet LAN connection into four 10/100 switched ports at any desktop. Up to two optional pass-through ports accommodate dedicated subnets or analog voice lines. Three included covers allow 0, 1 or 2 pass-through ports. A large wall plate makes unusual mounting situations to be easily adapted, but in most installations should not be necessary. The Network Jack’s compact design lets you install it virtually anywhere you need more LAN connectivity without expensive rewiring, a tangle of cables, or a messy, free-standing switch. Replace an existing wall jack, or use it as the LAN outlet in modular office paneling. The compact case fits standard 2.81" x 1.75" (NEMA-WD6) wall outlet cutouts or modular paneling. Can be powered via POE (Power Over Ethernet), or through either of two included power supplies. The second provides POE to both the NJ100 and an additional POE-enabled switch. Additional information available from the data sheet at This item is new, never used, in original packaging. It was only removed for photographing and has never been powered up. Shipped with USPS Priority Mail.