Features:

This RB922UAGS-5HPacT-NM version is equipped with a miniPCI-express slot, a SIM slot for 3G/4G device or additional wireless card, a high power 3x3 triple chain 802.11ac wireless and three RP-SMA connectors for external antennas
The NetMETAL is a completely new 802.11ac product in a waterproof metal enclosure. Its rugged design is made to withstand the toughest conditions, but at the same time is easy to use and can be opened and closed with one hand. The solid aluminum enclosure also works as a reliable heat-sink for its high output power radio.
The NetMETAL is equipped with powerful 720Mhz CPU, 128MB RAM, one Gigabit Ethernet port, 802.11ac wireless, one SFP cage, USB, RP-SMA connectors for external antennas and RouterOS L4 license.

Specification:

Product code    RB922UAGS-5HPacT-NM
SFP DDMI    yes
CPU nominal frequency    720 MHz
CPU core count    1
Size of RAM    128 MB
10/100 Ethernet ports    None
10/100/1000 Ethernet ports    1
MiniPCI slots    0
MiniPCI-e slots    1
Wireless chip model    QCA9880-BR4A-R
Wireless standards    802.11ac
Number of USB ports    1
Power Jack    0
802.3af support    no
Supported input voltage    8 V - 30 V
PoE in    Yes
PoE out    No
Voltage Monitor    Yes
PCB temperature monitor    Yes
CPU temperature monitor    No
Dimensions    143x247x48mm (PCB)