Mikrotik CRS112-8P-4S-IN 8x Gigabit POE Ethernet Smart Switch, 4x SFP cages, 400MHz CPU, 128MB RAM,

CRS112-8P-4S-IN is an eight Gigabit RJ45 port PoE switch, that offers
different power output options: autosensing 802.3af/at PoE/PoE+ and
Passive PoE, and four SFP ports provide optical fiber connectivity
options to support uplinks of up to 1 Gbps.

CRS112-8P-4S-IN is equipped with 12 independent switching ports. 28 V
3.4 A power supply is already included in the box. There is secondary
DC jack on the back of the enclosure that supports 48-57 V power supply
(not included, can be purchased separately). CRS112-8P-4S-IN can power
802.3af/at devices if 48-57 V DC input is used (unit will automatically
detect and provide correct power to devices). Max current is 1 A per
port if input voltage is 18-28 V, 450 mA if 48-57 V. Total limit is
2.8A@24V and 1.4A@48-57V. PoE-Out is passed over mode B 4,5 (+) and 7,8
(-) pins

Specifications

Details

Product code    CRS112-8P-4S-IN
Architecture    MIPSBE
CPU    QCA8511
CPU core count    1
CPU nominal frequency    400 MHz
License level    5
Size of RAM    128 MB
Storage size    16 MB
Storage type    FLASH

Powering
Details
Max Power consumption    10W
PoE out    802.3af/at
Number of DC inputs    2 (DC jack)
DC jack input Voltage    18 – 57 V

Ethernet
Details
10/100/1000 Ethernet ports    8

Fiber
Details
SFP ports    4

Peripherals
Details
Serial port    RJ45

Other
Details
PCB temperature monitor    Yes