MikroTik CRS305-1G-4S+IN
Part numberCRS305-1G-4S+IN
The short answer
The MikroTik CRS305-1G-4S+IN is a managed, fanless network switch with 4 SFP+ ports, meant for a mini PC owner who wants to build a wired network around SFP+ links rather than copper ports. It has no PoE budget and no 2.5GbE or 10GbE ports.
Specifications
The part number is CRS305-1G-4S+IN. Its fast connections are the 4 SFP+ ports, and it has 0 2.5GbE ports and 0 10GbE ports, so there is no multi-gig copper. It is a managed switch. It is fanless, so there is no fan to add noise on your desk. The PoE budget is 0 W, so it cannot power PoE devices.
- 2.5GbE ports
- 0
- 10GbE ports
- 0
- SFP+ ports
- 4
- Managed
- Yes
- Fanless
- Yes
- PoE budget
- 0 W
MikroTik specification page · read October 22, 2026
Which mini PCs it fits
A switch does not go inside a mini PC, so fit comes down to the network link. This one has 4 SFP+ ports and no 2.5GbE or 10GbE ports, so a machine's own LAN speed decides how it connects. For the ASUS NUC 14 Pro we have not confirmed it fits, because we do not have that machine's LAN speed. The same is true of the Apple Mac Studio (M5 Max). Check each machine's network port speed before you plan around this switch.
Checked against every mini PC sold on amazon.com, from the specifications we hold for each machine.
Fits, with a note (20)
- ACEMAGIC V1: Your mini PC connects at 1 GbE, so the link runs at that speed.
- ASUS NUC 14 Performance: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- ASUS NUC 14 Pro: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- ASUS NUC 14 Pro+: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- ASUS ROG NUC: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- ASUS ROG NUC 16: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- ASUS ROG NUC 16 Edition 20: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- Beelink ME mini: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- Beelink Mini S12 Pro: Your mini PC connects at 1 GbE, so the link runs at that speed.
- Beelink SER8: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- BMAX MaxMini B4 Ultra: Your mini PC connects at 1 GbE, so the link runs at that speed.
- BOSGAME M5: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- GEEKOM A8 Max: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- GEEKOM A9 Mega: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- GMKtec EVO-X2: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- GMKtec NucBox G3S: Your mini PC connects at 1 GbE, so the link runs at that speed.
- MINISFORUM AI X1 Pro: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- MINISFORUM AtomMan G1 Pro: Your mini PC connects at 5 GbE, so the link runs at that speed.
- MINISFORUM MS-02 Ultra: The switch runs at 10 GbE, below this machine's fastest port.
- MINISFORUM UM890 Pro: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
Not confirmed (5)
- Beelink GTi14 Ultra: Not confirmed: no record of this machine's network speed.
- GMKtec EVO-X3: Not confirmed: no record of this machine's network speed.
- MINISFORUM AtomMan G7 Pro: Not confirmed: no record of this machine's network speed.
- MSI MAX Edge AI+: Not confirmed: no record of this machine's network speed.
- NIMO Mini PC Desktop AI Max+ 395: Not confirmed: no record of this machine's network speed.
Before you buy
We have not confirmed a fit for the ASUS NUC 14 Pro or the Apple Mac Studio (M5 Max), because we do not have either machine's LAN speed. With no PoE budget and no copper multi-gig ports, it suits SFP+ links only. The maker's own specification page has the full details.
Common questions
Does the CRS305-1G-4S+IN have 10GbE ports?
It has 0 10GbE ports and 0 2.5GbE ports. Its fast connections are the 4 SFP+ ports, so plan your links around those rather than copper.
Can it power a PoE device?
No. Its PoE budget is 0 W, so any device that needs power over Ethernet, such as a camera or access point, needs another power source.
Will it work with my ASUS NUC 14 Pro?
We have not confirmed it fits the ASUS NUC 14 Pro, because we do not have that machine's LAN speed. Check the machine's network port speed before you buy.
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