In original packaging item, may require some assembly. See link for more details:

Size: 24x8

Note: Tested and powers on. Cannot be tested further due to wifi requirements. 7 days to return if it does not function. 

https://www.walmart.com/ip/NETGEAR-Nighthawk-AC1900-24x8-WiFi-Cable-Modem-Router-Combo-DOCSIS-3-0-Certified-for-Xfinity-from-Comcast-Spectrum-Cox-more-C7000/46179354