RB-CRS310S specification sheet

Short Description

MikroTik Cloud Router Switch 5x SFP & 4x SFP+ Port, CRS310-1g-5s-4s+in, RouterOS license 5, 256 MB RAM, 16 MB storage size, 1x 10/100/1000 Ethernet Ports, 5x SFP Ports, 4x SFP+ Ports

© Respective owners and brand holders. © 2026 Laptop Direct CC. The contents has been generated by Laptop Direct CC (https://www.laptopdirect.co.za). All products are sourced locally in South Africa and the warranty is that of the local supplier only. E&OE.

Long Description

Features:

CRS310-1G-5S-4S+IN 10
Gigabit fibre connectivity way over a 100 meters - for small offices or ISPs. Hardware offloaded VLAN-filtering and even some L3 routing on a budget!

This switch is an indoor variation of the prominent netFiber 9 switch - used by many small and medium ISPs for reliable 10 Gigabit fibre connections stretching over a 100 meters. With five 1G SFP ports, four 10G SFP+ ports, and an additional Gigabit Ethernet port, this is the perfect upgrade for existing CRS212 setups. Youre getting the modern ARM v7 CPU, 256 MB of RAM, and better cooling. The new Marvell switch-chips bring phenomenal performance to the table!

The Gigabit Ethernet port has a direct connection to the switch chip - so you can enjoy full gigabit speed there. And it supports PoE-in, giving you an additional powering option in tricky spots.

You can mount this switch in a standard 1U rack to keep everything organized. And it has all the power you would expect from a rackmount device: CRS310 supports hardware offloaded VLAN- filtering. And even some hardware offloaded Layer-3 routing.

CRS310-1G-5S-4S+IN is a fantastic tool for anyone working with indoor connections over 100 meters while keeping data loss and ping low. Optical fiber can be a great alternative to copper if you are worried about electromagnetic interference, tampering or eavesdropping.

Specifications:

© 2026 Respective owners and brand holders. This table has been carefully researched and generated by Laptop Direct CC (https://www.laptopdirect.co.za), however, errors and omissions may occur. Only references to South Africa apply. All products are sourced in South Africa from the official suppliers and the warranty is that of the local supplier. E&OE. This table and our site's content may be used on condition that this notice and link remains intact and unaltered.
Specifications and features
Product Code	RB-CRS310S
Specifications
Product code	CRS310-1G-5S-4S+IN
Architecture	ARM 32bit
CPU	98DX226S
CPU core count	1
CPU nominal frequency	800 MHz
RouterOS license	5
Operating System	RouterOS
Size of RAM	256 MB
Storage size	16 MB
Storage type	FLASH
MTBF	Approximately 200'000 hours at 25C
Tested ambient temperature	-40°C to 70°C
Powering
Number of DC inputs	2 (DC jack, PoE-IN)
DC jack input Voltage	18-57 V
Max power consumption	20 W
Max power consumption without attachments	8 W
Cooling type	1
PoE in	802.3af/at
PoE in input Voltage	18-57 V
Ethernet
10/100/1000 Ethernet ports	1
Fiber
SFP ports	5
SFP+ ports	4
Peripherals
Serial console port	RJ45
Other
CPU temperature monitor	Yes
PCB temperature monitor	Yes
Voltage Monitor	Yes
Certification & Approvals
Certification	CE, EAC, ROHS
IP	20