I can confirm that it is OXNAS based. After examining the circuit board, I identified the following parts:
CPU:
PLX NAS7820-AABC F
http://www.plxtech.com/products/consumer/nas7820RAM:
Hynix H5PS1G63EFR
Ethernet:
Realtek RTL8211D
USB:
Genesys GL850G
Also the output of "cat /proc/cpuinfo":
$this->bbcode_second_pass_code('', '
Processor : ARMv6-compatible processor rev 5 (v6l)
processor : 0
BogoMIPS : 279.34
processor : 1
BogoMIPS : 279.34
Features : swp half thumb fastmult edsp java
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xb02
CPU revision : 5
Hardware : Oxsemi NAS
Revision : 0000
Serial : 0000000000000000
')