Dimensions0.8" height x 3.1" width x 5.6" depth Product typehwic Interfaces/ports details2 x asynchronous/synchronous serial Interface typeasynchronous/synchronous serial Manufacturer part numberhwic-2a/s Application/usagewide area network Interfaces/ports2 x asynchronous/synchronous serial Compatibilitycisco 1841 integrated services routers cisco 2801 integrated services routers cisco 2811 integrated services routers cisco 2821 integrated services routers cisco 2851 integrated services routers cisco 3825 integrated services routers cisco 3845 integrated services routers Hwic-1t Hwic-2t Hwic-4t Hwic-4t1/e1 Hwic-1fe Hwic-2fe Hwic-1ge-sfp Hwic-4esw Hwic-1ce1t1-pri Hwic-2ce1t1-pri Ehwic-4esg Ehwic-d-8esg Ehwic-1ge-sfp-cu Packing safe or packed as your requirement