United Kingdom · www.amazon.co.uk · GBP
i3-N305 Mini PCs UK: Prices, Specs and Buying Guide
Compare i3-N305 mini PCs in the UK by complete price, RAM, SSD and networking. Check eight-core systems, barebones kits and small home-server suitability.
The quick answer
Our pick: CSL-Computer N305 Mini PC (16 GB RAM, 500 GB SSD).
Our N305 Mini PC picks
The pick below has the processor, RAM and SSD shown. Check those options and the total on Amazon before ordering.
CSL-Computer N305 Mini PC
N305 · 16 GB RAM · 500 GB SSD
Installed RAM and SSD are included. Check the exact model’s ports and software support.
Mini PC CSL Narrow Box Core i3 Windows 11 Pro, Intel Core i3-N305 8X 3800MHz Turbo Cycle, 500GB M.2 SSD, 16GB DDR4 RAM, Intel UHD Graphics, HDMI 2, USB 3.2, BT 5.2, DisplayPort, Dual WiFi
Compare the CPU, installed RAM, SSD and seller. Each card shows when its price was checked. Some PCs do not include an operating system, so confirm the contents and delivered total before ordering.
N305 · mini PC offers
3 complete systems
Ttfzzztech Firewall Mini PC Core i3 N305, 16GB DDR5 256GB SSD,2 * 10G SFP,2 x 2.5GbE i226-V LAN, Micro Firewall Appliance,Industrial Desktop PC HDMI2.0,USB2.0,TF Card Slot AES-NI ESXI
N305 · 16 GB RAM · 256 GB SSD
£363.99 GBP
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Ttfzzztech Firewall Mini PC Core i3 N305, 16GB DDR5 256GB SSD,2 * 10G SFP,2 x 2.5GbE i226-V LAN, Micro Firewall Appliance,Industrial Desktop PC HDMI2.0,USB2.0,TF Card Slot AES-NI ESXI
Amazon listing · ASIN B0DNMB6MF2Mini PC CSL Narrow Box Core i3 Windows 11 Pro, Intel Core i3-N305 8X 3800MHz Turbo Cycle, 500GB M.2 SSD, 16GB DDR4 RAM, Intel UHD Graphics, HDMI 2, USB 3.2, BT 5.2, DisplayPort, Dual WiFi
N305 · 16 GB RAM · 500 GB SSD
£978.99 GBP
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Amazon listing · ASIN B0DJP3W928Mini PC CSL Narrow Box Core i3 Windows 11 Pro, Intel Core i3-N305 8X 3800MHz Turbo Cycle, 1000GB M.2 SSD, 32GB DDR4 RAM, Intel UHD Graphics, HDMI 2, USB 3.2, BT 5.2, DisplayPort, Dual WiFi
N305 · 32 GB RAM · 1000 GB SSD
£1,007.99 GBP
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Mini PC CSL Narrow Box Core i3 Windows 11 Pro, Intel Core i3-N305 8X 3800MHz Turbo Cycle, 1000GB M.2 SSD, 32GB DDR4 RAM, Intel UHD Graphics, HDMI 2, USB 3.2, BT 5.2, DisplayPort, Dual WiFi
Amazon listing · ASIN B0DJP3V1TNNo systems match these filters. Try a higher budget or less memory.
N305 · barebones kits
N305: These are incomplete configurations. Include the required RAM, SSD and software when comparing total cost with a complete computer.
AIOPCWA Fanless Mini PC Industrial Computer N305, 2 x RS232/RS485 COM, 2 x Gigabit RJ45 LAN, Embedded Micro PC, DDR4 Barebone No RAM/SSD/OS, Dual HD Port, VGA, Mini-PCIe, 6 × USB
N305 · Barebones kit: check included parts
£326.67 GBP
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AIOPCWA Fanless Mini PC Industrial Computer N305, 2 x RS232/RS485 COM, 2 x Gigabit RJ45 LAN, Embedded Micro PC, DDR4 Barebone No RAM/SSD/OS, Dual HD Port, VGA, Mini-PCIe, 6 × USB
Amazon listing · ASIN B0H347KD1NAs an Amazon Associate, Cloudzat earns from qualifying purchases. Affiliate links do not change the listed selection rules. Kits and other processors are kept separate from complete exact-CPU systems.
How to choose an i3-N305 mini PC
| Specification | Intel Core i3-N305 |
|---|---|
| Cores / threads | 8 / 8 |
| Maximum turbo frequency | Up to 3.80 GHz |
| Intel processor power rating | 15 W TDP · 9 W configurable TDP-down |
| Integrated graphics | Intel UHD Graphics · 32 execution units |
| Intel listed maximum memory | 16 GB · one memory channel |
Source: Intel specifications linked above, checked 30 October 2026. Processor ratings are not wall-power measurements or system benchmarks. Installed memory, ports and expansion depend on the exact computer.
What the i3-N305 changes in a mini PC
The Core i3-N305 is an option to compare when a four-core entry-level mini PC may be too constrained by several simultaneous tasks. Its eight cores and eight threads do not mean every application becomes twice as fast. The work must be able to use the additional cores, and the finished computer still needs adequate memory, storage and cooling. Start with the services or applications you intend to run together.
Treat this as a complete-system decision. An eight-core machine with a small SSD, limited service access or unsuitable networking can be a weaker purchase for your task than a well-configured alternative. Write down the non-negotiable requirements before comparing offers, especially if the computer will replace a working server or become the only machine performing an essential household function.
Comparing a UK delivered price
Use the pound-denominated Amazon UK offers when buying for a UK address. Check the selected seller, delivery charge and final checkout total rather than comparing an overseas advertised price after currency conversion. For an imported configuration, establish where it ships from and whether any additional import charges are shown. Do not assume every variant on one product page has the same seller, dispatch location or return destination. Save the configuration and order details so that the delivered machine can be checked against the actual purchase.
A usable UK package also needs the appropriate mains lead or power adapter. Confirm the adapter input rating and supplied plug with the seller; a photograph of the enclosure does not establish these details. If Windows is included, check the edition, activation and recovery route. If you intend to install another system, include the time needed for installation and compatibility checks in the decision. A cheaper barebones kit may be reasonable for an experienced buyer but should be compared after adding the missing components.
Confirm Core i3-N305 rather than a comparison claim
Check the selected processor carefully. Intel’s official name is Core i3-N305. Product families can include N100, N150, N300 and other variants, while descriptions may mention those names only to advertise a comparison. The name printed on the enclosure or the first result in a marketplace search does not prove which processor is installed in the offer selected at checkout.
Use the specification table for the processor-level facts, then inspect the manufacturer’s exact computer documentation. A desktop, a multi-port firewall appliance and a storage-oriented enclosure can share the same CPU while offering substantially different expansion and cooling. Ask for clarification when the selected configuration is not explicit, rather than assuming that the most capable variant in the family is the one included in the displayed price.
More CPU cores do not create more memory capacity
Memory can become the practical limit before an eight-core CPU is fully occupied. Add the host operating system, each concurrent service and some recovery headroom when sizing a small server. For a mixed desktop, consider the browser, calls and background applications together. Compare installed RAM, not the largest number mentioned anywhere in the product description, and account for the cost of a later change.
Intel’s published memory maximum for this processor is 16 GB with one memory channel. Some complete-system vendors advertise more; treat that as a vendor-specific configuration claim and obtain model-level confirmation. Check whether memory is soldered, replaceable or absent from a barebones kit. Choosing an eight-core processor does not by itself establish support for more memory than a four-core alternative.
Containers and modest virtualization
An i3-N305 system can be considered for a modest collection of services when the full configuration matches the workload. Separate lightweight containers from several interactive desktop virtual machines. They create different demands on memory, storage, networking and responsiveness. List the services that must remain available during backups, updates and other scheduled work, rather than sizing only for the quietest period of the day.
Check the current requirements of the virtualisation platform and guest software you intend to use. Processor virtualisation features do not establish that every network or storage device in the machine will work as intended. Leave space for recovery images and logs, keep backups on separate equipment and plan how to restore the host. Avoid assigning all resources to guests before the host’s normal needs are understood.
Network appliances and OPNsense decisions
Many buyers encounter this processor in a multi-port appliance rather than an ordinary desk computer. Compare port count, controller model, link speed and firmware support with the exact operating system. Features such as traffic inspection, VPNs and several busy interfaces can alter the workload. A processor name and a row of Ethernet sockets do not prove a particular routing or encrypted-throughput result.
Cloudzat’s separate OPNsense comparison addresses that narrower buying decision. For this general guide, include the full appliance cost: RAM, SSD, power adapter and any needed network accessories. Check whether the quoted unit is complete or barebones. If the machine will serve as your router, keep a fallback connection and document the configuration before replacing the equipment that currently provides network access.
Office work and application responsiveness
For office use, the additional cores may be worth comparing when several active applications run together. That does not mean a light document or simple website needs an eight-core system. Judge the whole desk setup: installed memory, SSD responsiveness, monitor connections, noise and software contents. A computer with the right ports and a clear support route can be a better daily purchase than a less usable enclosure with the same CPU.
Check the operating-system edition and licence included with the selected offer. For Linux, seek information about the exact Wi-Fi and Ethernet components, graphics and firmware, rather than assuming that all versions of the same model use identical parts. Keep the recovery information before changing operating systems. Test your normal monitor arrangement and applications while return options remain available.
Plex, Jellyfin and media-server limits
Do not use core count alone to estimate media-server capacity. Direct playback, software conversion and hardware-assisted transcoding are different paths. The file formats, resolution, subtitle handling, client compatibility and network connection can change the work substantially. The presence of integrated graphics does not establish a reliable number of concurrent streams for your own library.
Read the current media application’s hardware-acceleration requirements for the operating system and driver you plan to use. Check any relevant subscription features and test difficult files as well as easy ones. A machine that handles one sample successfully has not necessarily demonstrated support for every format in your collection. Keep valuable media and configuration backups outside the computer performing the playback or conversion work.
Storage and expansion on the finished machine
Check the installed SSD capacity and the actual internal connectors before comparing prices. A system carrying several services needs space for updates, logs and recovery as well as application data. A second slot can be useful, but it may share space or require an accessory. Confirm the drive size and interface; an M.2 label alone does not establish NVMe support or an unrestricted upgrade path.
The processor specification does not tell you how a particular board divides its available connections between storage, network controllers and external ports. Read the system manual when several devices must work together. Avoid buying an appliance solely from its socket count or marketing photograph. If a missing connector would prevent the planned installation, confirm its operation and any restrictions before placing the order.
Cooling and the difference between TDP and wall power
An eight-core mini PC needs a cooling design suitable for the work it will sustain. A fanless metal appliance and a small ventilated desktop may behave differently over a long run. Room temperature, placement and firmware power settings also matter. Seek tests of the actual enclosure when sustained processing or quiet operation is important, and avoid treating a short burst result as a continuous-performance guarantee.
Intel’s power figures describe the processor under defined conditions, not the electricity draw of every complete system. Use measured average wall power and your own tariff in the calculator. For an always-on installation, include the drives and accessories required by the job. A lower purchase price can lose some of its advantage through extra operating cost, but that comparison needs measurements rather than the CPU’s nominal rating alone.
N305, N150 or Core 3 N355
Compare an N150 when the services are light and the larger CPU would spend most of its time idle. Compare Core 3 N355 when the complete newer machine provides useful improvements at an acceptable total cost. Do not confuse the N355 naming with Core i3-N305, and do not assume that a newer number represents more cores than the N305. Check the relevant comparison page for the processor facts and configuration tradeoffs.
Before ordering, reduce the shortlist to the models that meet your essential memory, storage, network and support requirements. Confirm the selected variant and complete UK checkout total. On arrival, verify the installed CPU and components, test important ports and keep recovery information. Move services gradually and retain a working backup or fallback until the new system has demonstrated that it can perform the specific job reliably.
Electricity and support for a UK installation
For an always-on machine, enter the unit rate from your own electricity bill in pounds per kWh. The calculator uses an editable example, not a current national tariff. Do not allocate an entire household standing charge to a mini PC that does not change that charge. Compare measured whole-system power at the intended workload and operating hours. Include an external disk or network adapter if it will remain connected, and compare like with like when deciding whether electricity savings justify a higher purchase price.
Before moving important services, check the manufacturer’s firmware downloads and recovery instructions for the exact model. Establish whether the seller provides a practical UK return route and whether support can identify the purchased configuration. Keep a separate backup of your files and service settings. Test sleep, restart after a power interruption, Ethernet and the monitor connection while you can still resolve a configuration mismatch easily. These checks are especially useful when a compact PC will run unattended in a cupboard or replace a machine used for work.
Estimate annual electricity cost
Enter measured whole-system watts and your local tariff. The starting values are examples, not N305 measurements or national tariff estimates.
kWh/year = watts × hours/day × 365 ÷ 1000. Cost = kWh × tariff. Excludes standby changes and other equipment.
Current alternative mini PC deals on Amazon
These use other processors. Compare the complete configuration, ports and delivered cost with the systems above.
Beelink Mini PC MINI S12 Pro, Intel 12th Processor N100 (4C/4T, up to 3.4Ghz), 12G LPDDR5 500G SSD Mini Computer Windows 11 Home, 4K Dual Display, 25W TDP/WiFi 6/BT5.2/ RJ45 2.5G
N100 · 12 GB RAM · 500 GB SSD
£279.00 GBP
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Beelink Mini PC MINI S12 Pro, Intel 12th Processor N100 (4C/4T, up to 3.4Ghz), 12G LPDDR5 500G SSD Mini Computer Windows 11 Home, 4K Dual Display, 25W TDP/WiFi 6/BT5.2/ RJ45 2.5G
Amazon listing · ASIN B0C1FXP33Z
Beelink MINI S12 Pro Mini PC, Intel Alder Lake N100(4C/4T, up to 3.4GHz) 25W TDP, Mini Computer Windows11 Home, 12GB LPDDR5 500GB SSD Mini Desktop PC, 4K Dual Display HDMI/USB3/2.5G LAN/WiFi6/BT5.2
N100 · 12 GB RAM · 500 GB SSD
£289.00 GBP
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Beelink MINI S12 Pro Mini PC, Intel Alder Lake N100(4C/4T, up to 3.4GHz) 25W TDP, Mini Computer Windows11 Home, 12GB LPDDR5 500GB SSD Mini Desktop PC, 4K Dual Display HDMI/USB3/2.5G LAN/WiFi6/BT5.2
Amazon listing · ASIN B0DPQ933Q4
Beelink Mini PC N100(4C/4T,up to 3.4GHz),12th Alder Lake,Mini Desktop 12G LPDDR5 RAM 512G M.2 SATA SSD,Mini Computer 4K Dual HDMI/2.5G RJ45/Wifi6/BT5.2
N100 · 12 GB RAM · 512 GB SSD
£289.00 GBP
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Beelink Mini PC N100(4C/4T,up to 3.4GHz),12th Alder Lake,Mini Desktop 12G LPDDR5 RAM 512G M.2 SATA SSD,Mini Computer 4K Dual HDMI/2.5G RJ45/Wifi6/BT5.2
Amazon listing · ASIN B0GTVWFLBS
Beelink Mini PC S12 Pro, Intel Twin Lake-N100 (up to 3.4GHz), 25W TDP | 16GB DDR4 500GB SSD Windows 11 Home, 2.5G LAN, 4K Dual HDMI, WiFi 6, BT5.2, Office Mini Computer
N100 · 16 GB RAM · 500 GB SSD
£299.00 GBP
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Beelink Mini PC S12 Pro, Intel Twin Lake-N100 (up to 3.4GHz), 25W TDP | 16GB DDR4 500GB SSD Windows 11 Home, 2.5G LAN, 4K Dual HDMI, WiFi 6, BT5.2, Office Mini Computer
Amazon listing · ASIN B0C2HH2R4Ri3-N305 buying questions
Is Core i3-N305 twice as fast as N150?
An eight-core processor does not guarantee twice the application performance of a four-core processor. Workload parallelism, memory, storage, cooling and power settings affect the finished system.
Does i3-N305 officially support more than 16 GB RAM?
Intel lists a 16 GB maximum. Larger advertised system configurations are vendor-specific claims that require confirmation for the exact machine and revision.
Is an N305 appliance a complete mini PC?
It may be complete or barebones. Confirm installed RAM, SSD, power adapter and software contents before comparing the price with a ready-to-use desktop.
Is the i3-N305 suitable for a small server?
Consider it when the whole system matches the service mix. Check concurrent memory needs, network-controller support, storage, cooling and backup arrangements. Processor identity alone does not establish workload capacity.
How should I compare local prices?
Use GBP offers from Amazon UK and confirm the selected configuration, delivery, checkout taxes and return destination. Overseas converted prices are not local offers. Each card shows when its price was checked.
Sources and buying method
Intel provides the processor specifications. The cards show the RAM, SSD and dated Amazon price for each PC. We have not tested every machine ourselves.
Intel Core i3-N305 · Home Assistant x86-64