The Cisco 870 Series Integrated Services Routers with Wireless module.

Support ADSL2+/Wireless 802.11b/g 54Mbps

Come with power supply.
Show run:

Cisco IOS Software, C870 Software (C870-ADVSECURITYK9-M), Version 15.1(3)T2, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Wed 10-Aug-11 11:23 by prod_rel_team

ROM: System Bootstrap, Version 12.3(8r)YI6, RELEASE SOFTWARE

Router uptime is 1 minute
System returned to ROM by reload
System image file is "flash:c870-advsecurityk9-mz.151-3.T2.bin"­
Last reload reason: Reload Command

Cisco 877W (MPC8272) processor (revision 2.0) with 118784K/12288K bytes of memory.
Processor board ID xxxxxxxxxxxx
MPC8272 CPU Rev: Part Number 0xC, Mask Number 0x10
4 FastEthernet interfaces
1 ATM interface
1 Virtual Private Network (VPN) Module
1 802.11 Radio
128K bytes of non-volatile configuration memory.
24576K bytes of processor board System flash (Intel Strataflash)

Configuration register is 0x2102


Any question free to ask.