Specifications:

Product code D53G-5HacD2HnD-TC&RG520F-EU
CPU Quad-core IPQ-4019 448-896 (auto) MHz
CPU Architecture ARM 32bit
Size of RAM 256 MB
Storage 16 MB flash
1G Ethernet ports 5
Micro SIM slots 1
USB port 1 USB 2.0 port type A
M.2 slot 1
Switch chip model IPQ-4019
Wireless 2.4 GHz 802.11a/b/g/n dual-chain, 5 GHz 802.11a/n/ac dual-chain
Wireless antenna max gain 2.4 GHz (3 dBi), 5 GHz (5.5 dBi)
LTE modem R11mL-RG520F
LTE category 20 (2.0 Gbps downlink, 200 Mbps uplink)
5G SA Sub-6 4.0 Gbps (DL)/ 900 Mbps (UL) NSA Sub-6 4.0 Gbps (DL)/ 550 Mbps (UL)
TAC 86945405
5G SA FDD bands 1 (2100 MHz) / 3 (1800 MHz) / 5 (850 MHz) / 7 (2600 MHz) / 8 (900 MHz) / 20 (800 MHz) / 28 (700 MHz)
5G SA FTDD bands 38 (2600 MHz) / 40 (2300 MHz) / 41 (2500 MHz) / 75 (1500 MHz) / 76 (1500 MHz) / 77 (3700 MHz) / 78 (3500 MHz)
5G NSA FDD bands 1 (2100 MHz) / 3 (1800 MHz) / 5 (850 MHz) / 7 (2600 MHz) / 8 (900 MHz) / 20 (800 MHz) / 28 (700 MHz)
5G NSA TDD bands 38 (2600 MHz) / 40 (2300 MHz) / 41 (2500 MHz) / 75 (1500 MHz) / 76 (1500 MHz) / 77 (3700 MHz) / 78 (3500 MHz)
LTE FDD bands 1 (2100 MHz) / 3 (1800 MHz) / 5 (850 MHz) / 7 (2600 MHz) / 8 (900 MHz) / 20 (800 MHz) / 28 (700 MHz) /
32 (1500 MHz)
LTE TDD bands 38 (2600MHz) / 40 (2300MHz) / 41 (2500MHz) / 42 (3500MHz) / 43 (3700MHz)
3G Category R8 (42.2Mbps Downlink, 5.76Mbps Uplink)
3G bands 1 (2100MHz) / 5 (850MHz) / 8 (900MHz)
Dimensions 240 x 156 x 44 mm
Operating system RouterOS v7 only
Operating temperature -40°C to +70°C