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 22 October 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.co.uk, from the specifications we hold for each machine.
Fits (7)
Fits, with a note (33)
- ACEMAGIC S1: 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 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.
- Beelink EQ14: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- Beelink EQi12: Your mini PC connects at 1 GbE, so the link runs at that speed.
- Beelink EQR5: Your mini PC connects at 1 GbE, so the link runs at that speed.
- Beelink EQR6: 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 SER8: Your mini PC connects at 2.5 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.
- Dell Pro Max Micro FCM2250: Your mini PC connects at 1 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 M8: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- GMKtec NucBox G10: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- GMKtec NucBox K11: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- GMKtec NucBox K13: Your mini PC connects at 5 GbE, so the link runs at that speed.
- GMKtec NucBox K8 Plus: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- GMKtec NucBox M6 Ultra: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- HP Z2 Mini G1a: Your mini PC connects at 2.5 GbE, so the link runs at that speed.
- Lenovo ThinkCentre M70q Gen 5: Your mini PC connects at 1 GbE, so the link runs at that speed.
- Lenovo ThinkCentre M75q Gen 5: Your mini PC connects at 1 GbE, so the link runs at that speed.
- Lenovo ThinkCentre M90q Gen 5: Your mini PC connects at 1 GbE, so the link runs at that speed.
- Lenovo ThinkCentre M90q Gen 6: Your mini PC connects at 1 GbE, so the link runs at that speed.
- Lenovo ThinkCentre neo 50q Gen 5: Your mini PC connects at 1 GbE, so the link runs at that speed.
- Lenovo ThinkCentre neo 50q Gen 6: Your mini PC connects at 1 GbE, so the link runs at that speed.
- Lenovo ThinkStation P3 Tiny: Your mini PC connects at 1 GbE, so the link runs at that speed.
- Lenovo ThinkStation P3 Tiny Gen 2: Your mini PC connects at 1 GbE, so the link runs at that speed.
- Lenovo ThinkStation P3 Ultra SFF Gen 2: Your mini PC connects at 1 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 (3)
- ASUS ROG NUC 15: Not confirmed: no record of this machine's network speed.
- Beelink EQi13: Not confirmed: no record of this machine's network speed.
- Beelink GTi14 Ultra: 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.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.