Original Transformer Power Supply
Linksys Cisco 12V 0.5A

    Model: RH41-1200500DG
    Input: 230V , 50-60Hz
    Output: 12V - 500mA - 6 Watts
    FIXED CURRENT
    Plug: 5.5mm x 2.1mm
    Polarity: Plus inside
    Dimensions: 6.8 x 5 x 4 cm
    Cable length: 185 cm
    Weight: 0.320 kg

Fits devices from companies: Linksys Cisco , D-Link , Tp-Link and others requiring the above ( 12V to 500mA )
Designed for the following models however only up to 500mA !!!
Linksys Routers:

    BEFCMUH4, BEFN2PS4, BEFSX41 (v1, v2, v3, v4), BEFSR81 (v3 only), BEFVP41 (v2 only), BEFW11S4 (v4 only)
    RT31P2, RT31P2-AL, RT31P2-CA, RT31P2-NA, RT31P2-VD
    RTP200, RTP300, RTP300-VD
    RV042
    WAG54G, WAG54G-ST (v1, v2)
    WCG200 (v1, v2), WCG200-CA, WCG200-CB, WCG200-CC (v1.0, v2.0), WCG200-NA (v1.0, v2.0)
    WKUSB54-BP
    WRK54G (v1, v1.1)
    WRP200
    WRT54G-BP, WRT54GL, WRT54GP2, WRT54GP2-CA, WRT54GP2-NA, WRT54GP2-VD, WRT54GX (v1.0, v2.0), WRT54GX2, WRT54GX2-CA, WRT54GX4, WRTP54G
    WRTSL54GS
    WRT54G (v1.1, v2.0, v2.2, v3.0, v3.1, v4 only), WRT54G-TM (v1.1, v2.0, v2.2, v3.0, v3.1, v4 only), WRT54GS (v1.0, v1.1, v2.0, v2.1, v3.0, v4 only)
    WKPC54G

Linksys Cable/DSL Modems/Gateways:

    BEFCMU10 (v2, v3, v4 only)
    WCG200-CB
    BEFCMUH4
    WCG200-CC
    WAG54G, WCG200-CX (v2), WAG54G-ST (v1, v2)
    WCG200-NA (v1, v2), WCG200 (v1, v2), WCG200-NA, WCG200-CA

Linksys Wireless Accespoint

    WAP54GP, WAP54GX

Linksys Wired Switches:s Points:

    WAP54G (v3.1 only)
    EG008W (v3 only)
    EZXS16W (v2.1 only)

Linksys Specialty Products:

    BEFN2PE
    WPS54GU2, WGA54AG, WPS54GU2-BP
    Netgear RangeMax WNR834B, Linksys hub router