smallest router for 4 channel portable NVR

I am looking for the smallest router possible to match up to this 4 channel NVR pictured below

It will be vehicle mounted and must be 12 Volt DC powered

also need a very small 12 VDC converter to power a eSATA hard drive . anyone found a compact "regulated" converter to run HDD off a vehicle 12- 13 volt supply ?

any suggestions ?

thankyou kindly

I found a few options for the power supply for the SATA HDD

http://au.rs-online.com/web/p/isolated-dc-dc-converters/7256409/

http://au.rs-online.com/web/p/isolated-dc-dc-converters/7962135/?searchTerm=7962135&relevancy-data=636F3D3126696E3D4931384E525353746F636B4E756D6265724D504E266C753D656E266D6D3D6D61746368616C6C26706D3D5E5C647B367D247C5E5C647B377D247C5E5C647B31307D2426706F3D313426736E3D592673743D52535F53544F434B5F4E554D4245522677633D4E4F4E45267573743D3739363231333526

or maybe trim down one of these 180W DC 12V ATX Power Supply Car Auto MINI ITX PC Pico ITX switch PSU

nobody got suggestions for a miniature 4 port router to suit vehicle mount ?

http://www.ebay.ca/itm/like/141487874597?limghlpsr=true&hlpv=2&ops=true&viphx=1&hlpht=true&lpid=116

It's 5 volt

but easy to covert

thanks , but i need 4 - 5 port router

anyone got ideas on the best way to set up 4 x 1080 P cameras in a vehicle with a compact DVR / NVR that will power up fast and record on to large capacity HDD ?

searched on google for small form factor router - came up with this:-

http://mil-embedded.com/news/rugged-small-form-factor-router-running-cisco-ios-released-by-x-es/

looks expensive and CISCO = EXPENSIVE.

What about the effects of vehicle motion if you intend using while vehicle moving- you would be better off with a SSD hard drive.

searched on google for small form factor router - came up with this:-

http://mil-embedded.com/news/rugged-small-form-factor-router-running-cisco-ios-released-by-x-es/

looks expensive and CISCO = EXPENSIVE.

What about the effects of vehicle motion if you intend using while vehicle moving- you would be better off with a SSD hard drive.

Yeah SSD are getting bigger and cheaper but I would like at least 3 terabyte for 4 cameras

4 x 1080 P cameras could use up to 320 meg per day in continuous driving

I currently have a 1 terabyte 2.5" laptop spec HDD recording from four analogue cams and have it mounted on rubber cushion mounts , its surviving overland four wheel drive in harsh terrain so far but I am looking forwards to the day in 1 - 2 years when we can hopefully get a 2 TB SSD for under $500 , they are currently $2500 each here.