Mikrotik CRS504-4XQ-OUT 100 Gigabit QSFP switch

Architecture: MIPSBE
Processor: QCA9531
Number of CPU cores: 1
Nominal processor frequency: 650 MHz
Switch Chip Model: 98DX4310
RouterOS License: 5
Operating System: RouterOS v7
RAM size: 128 MB
Memory size: 32 MB
Storage type: FLASH
MTBF: Approximately 200'000 hours at 25C
Ambient temperature tested: -40°C to 70°C
Number of DC inputs: 3 (DC jack, PoE-IN, 2-pin terminal)
DC jack input voltage: 36-57 V
2-pin terminal input voltage: 36-57 V
Maximum power consumption: 44 W
Maximum power consumption without plug-ins: 25 W
Cooling type: Passive
PoE in: 802.3 bt
PoE input voltage: 43-57V
10/100 Ethernet ports: 1
Number of 100G QSFP28 ports: 4
Serial console port: RJ45
CPU temperature monitor: Yes
PCB temperature monitor: Yes
Voltage monitor: Yes
Certification: CE, EAC, ROHS
IP 66

Affordable, compact, energy-efficient 100 Gbps network anytime, anywhere! IP66 weatherproof housing, 4x 100 Gigabit ports, multiple power options.

The CRS504-4XQ-OUT is a versatile, cost-effective, ultra-fast, weatherproof switch for all your outdoor needs.

The small size combined with the low power consumption (25 W without attachments!) is ideal for expanding a 100 Gigabit network. This speed is no longer limited to data centers, ISPs and large offices.
It has four 100 Gigabit QSFP28 ports. Use them to connect other 100 Gigabit devices or get a switch to connect multiple 25 Gigabit devices: each port is connected to four 25 Gigabit lines, allowing you to connect 16 x 25 Gigabit devices.
In fact, you can combine any number of connections this way: 100 Gigabits on one port, 40 Gigabits on the other, 4x25 Gigabits on the third, and maybe even some 10G or 1G cables on the fourth. You also have an Ethernet port for management purposes.