03330 048885

On-Prem AI Server Rental (UK), GPU Compute Without CAPEX

Written by

Pritesh Patel

Published on

February 24, 2026

Get AI power without CAPEX by renting GPU-ready servers for pilots, POCs, and production bursts.

Running an on-prem AI project without buying a lot of hardware?

If you’re starting AI or ML workloads on-prem, such as POCs, pilots, or production bursts, renting servers can be the quickest way to get the computing power you need without tying up capital in equipment that loses value.

Rent GPU-ready AI servers for on-prem LLM, vision, and HPC projects. Fast UK delivery, flexible terms, scalable configs. Speak to Flux IT today.

At Flux IT Hardware, we provide enterprise AI-ready server rentals, built for:
⚡ LLM training & inference
⚡ Computer vision & analytics
⚡ HPC / GPU-accelerated workloads
⚡ Data-sovereignty or air-gapped environments

Why rent AI servers for on-prem projects?

On-prem AI projects move quickly, but getting hardware often does not. If you are working on a POC, running a limited AI program, or scaling inference for a new application, renting provides the computing power you need right away while keeping costs manageable.

With Flux IT, you can set up enterprise hardware at your location and keep sensitive data secure, without committing to a long depreciation cycle.

Best for:

  • LLM training and fine-tuning
  • LLM inference and RAG pipelines
  • Computer vision and video analytics
  • HPC simulation and accelerated analytics
  • Air-gapped or sovereignty-driven environments

What you can rent

We customise every build to fit your workload and needs, such as power, rack space, network, and timelines. Common rental options include:

1) GPU-ready AI servers 

  •   Multi-GPU chassis options, depending on the project
  •   High core-count CPUs with large memory
  •   NVMe for fast data staging and scratch
  •   Redundant PSU and enterprise-grade cooling

2) Storage for AI datasets 

  •    High-IOPS NVMe storage
  •    Large capacity arrays for training data
  •    Backup and archive options for project retention

3) Networking for GPU workloads 

  •    High-throughput switching and optics as needed
  •    Options to fit with your existing data centre setup

Tip: If you are unsure whether you need more GPU, CPU, RAM, or storage bandwidth, we will help you determine the right size based on model type, batch size, dataset size, and target throughput.

Typical use cases

AI POC in 30–90 days
Start with a right-sized GPU server, then scale to a small cluster if the pilot lands.

Inference burst for a product launch
Add capacity for peak usage, then ramp down once demand stabilises.

Air-gapped AI
Keep everything behind your firewall with no reliance on public cloud connectivity.

Short-term research or funded programme
Match rental terms to grant or budget cycles.

Key benefits 

✅ No upfront CAPEX

Avoid big purchases for short-term or uncertain needs. Match spending to the project timeline.

✅ Faster time-to-compute

Get AI hardware set up quickly so your team can start training and inference sooner.

✅ Scale up or change specs mid-project

AI needs to change over time. Renting allows you to adjust as you learn, without being stuck with unsuitable equipment.

✅ Keep data on-prem

For regulated industries and IP-sensitive projects, on-prem is the easiest way to maintain control.

✅ Sustainable IT option

Rental extends the useful life of enterprise equipment and can cut down on waste from buying for a pilot and then scrapping it.

How the rental process works

  1. Quick discovery call (15 minutes)
    Workload, model type, timelines, site constraints, power/rack/network.

  2. Proposed configuration + rental terms
    Clear spec, delivery schedule, and options to scale.

  3. Delivery & deployment
    To your site (or preferred location), ready for integration.

  4. Project changes/extensions
    Swap, upgrade, extend—keep momentum without procurement delays.

Be green and stretch your IT budget.

Turn your surplus or outdated IT hardware into instant value. Upgrade to the latest enterprise and data centre technology with cashback rebates through our Trade-In, Trade-Up scheme when renting an AI server.

Tell us what you have, and get a fast quote.

Frequently Asked Questions

Can I scale up during the project?2026-02-24T11:03:26+00:00

That’s the purpose of rental. If your pilot turns into production, we can change the spec or add capacity.

Is on-prem rental suitable for regulated data?2026-02-24T11:03:06+00:00

Often, yes. On-prem keeps data within your environment. We’ll adjust the setup to meet your governance needs.

Do you only rent GPU servers?2026-02-24T11:02:46+00:00

No. We can also provide storage and supporting infrastructure depending on the project requirements.

Can you help size the right configuration?2026-02-24T11:02:20+00:00

Yes, we’ll recommend a spec based on your workload, model size, dataset, and performance targets.

How long can I rent AI servers for?2026-02-24T11:01:35+00:00

Most customers rent for weeks to months, but we can support longer terms if it fits the project.

PowerEdge Models We Buy

Server Hardware

We are always looking to buy surplus new and used Dell PowerEdge servers. Sell your Dell office and enterprise servers for maximum market value. See below for a list of Dell server models we purchase. Don’t see your equipment listed? Let us know!

R350 (1U)

R750 (2U)

R7525 (2U)

R760 (2U)

R840 (2U)

R940 (3U)

R750XA (2U)

R6525 (2U)

MX740C Modular Servers (Blade & Multi-Node)

MX840C Modular Servers (Blade & Multi-Node)

C6525 Modular Servers (Blade & Multi-Node)

Attach more information that will help us.

Drag or click to upload a file.

Max size: 1024 KB | Allow file types: SV, Text, Word, Excel, PDF, JPG, GIF, PNG, RAR, ZIP

A Member of the Flux IT team will get back to you within the next 24 working hours with a valuation. Should you have any questions, call us on 03330 048885.

PowerEdge Models We Buy

Server Hardware

We are always looking to buy surplus new and used Dell PowerEdge servers. Sell your Dell office and enterprise servers for maximum market value. See below for a list of Dell server models we purchase. Don’t see your equipment listed? Let us know!

R350 (1U)

R750 (2U)

R7525 (2U)

R760 (2U)

R840 (2U)

R940 (3U)

R750XA (2U)

R6525 (2U)

MX740C Modular Servers (Blade & Multi-Node)

MX840C Modular Servers (Blade & Multi-Node)

C6525 Modular Servers (Blade & Multi-Node)

Attach more information that will help us.

Drag or click to upload a file.

Max size: 1024 KB | Allow file types: SV, Text, Word, Excel, PDF, JPG, GIF, PNG, RAR, ZIP

A Member of the Flux IT team will get back to you within the next 24 working hours with a valuation. Should you have any questions, call us on 03330 048885.

PowerEdge Models We Buy

Server Hardware

We are always looking to buy surplus new and used Dell PowerEdge servers. Sell your Dell office and enterprise servers for maximum market value. See below for a list of Dell server models we purchase. Don’t see your equipment listed? Let us know!

R350 (1U)

R750 (2U)

R7525 (2U)

R760 (2U)

R840 (2U)

R940 (3U)

R750XA (2U)

R6525 (2U)

MX740C Modular Servers (Blade & Multi-Node)

MX840C Modular Servers (Blade & Multi-Node)

C6525 Modular Servers (Blade & Multi-Node)

Attach more information that will help us.

Drag or click to upload a file.

Max size: 1024 KB | Allow file types: SV, Text, Word, Excel, PDF, JPG, GIF, PNG, RAR, ZIP

A Member of the Flux IT team will get back to you within the next 24 working hours with a valuation. Should you have any questions, call us on 03330 048885.

PowerEdge Models We Buy

Server Hardware

We are always looking to buy surplus new and used Dell PowerEdge servers. Sell your Dell office and enterprise servers for maximum market value. See below for a list of Dell server models we purchase. Don’t see your equipment listed? Let us know!

R350 (1U)

R750 (2U)

R7525 (2U)

R760 (2U)

R840 (2U)

R940 (3U)

R750XA (2U)

R6525 (2U)

MX740C Modular Servers (Blade & Multi-Node)

MX840C Modular Servers (Blade & Multi-Node)

C6525 Modular Servers (Blade & Multi-Node)

Attach more information that will help us.

Drag or click to upload a file.

Max size: 1024 KB | Allow file types: SV, Text, Word, Excel, PDF, JPG, GIF, PNG, RAR, ZIP

A Member of the Flux IT team will get back to you within the next 24 working hours with a valuation. Should you have any questions, call us on 03330 048885.

PowerEdge Models We Buy

Server Hardware

We are always looking to buy surplus new and used Dell PowerEdge servers. Sell your Dell office and enterprise servers for maximum market value. See below for a list of Dell server models we purchase. Don’t see your equipment listed? Let us know!

R350 (1U)

R750 (2U)

R7525 (2U)

R760 (2U)

R840 (2U)

R940 (3U)

R750XA (2U)

R6525 (2U)

MX740C Modular Servers (Blade & Multi-Node)

MX840C Modular Servers (Blade & Multi-Node)

C6525 Modular Servers (Blade & Multi-Node)

Attach more information that will help us.

Drag or click to upload a file.

Max size: 1024 KB | Allow file types: SV, Text, Word, Excel, PDF, JPG, GIF, PNG, RAR, ZIP

A Member of the Flux IT team will get back to you within the next 24 working hours with a valuation. Should you have any questions, call us on 03330 048885.

PowerEdge Models We Buy

Server Hardware

We are always looking to buy surplus new and used Dell PowerEdge servers. Sell your Dell office and enterprise servers for maximum market value. See below for a list of Dell server models we purchase. Don’t see your equipment listed? Let us know!

R350 (1U)

R750 (2U)

R7525 (2U)

R760 (2U)

R840 (2U)

R940 (3U)

R750XA (2U)

R6525 (2U)

MX740C Modular Servers (Blade & Multi-Node)

MX840C Modular Servers (Blade & Multi-Node)

C6525 Modular Servers (Blade & Multi-Node)

Attach more information that will help us.

Drag or click to upload a file.

Max size: 1024 KB | Allow file types: SV, Text, Word, Excel, PDF, JPG, GIF, PNG, RAR, ZIP

A Member of the Flux IT team will get back to you within the next 24 working hours with a valuation. Should you have any questions, call us on 03330 048885.

SuperMicro Models We Buy

Server Hardware

Best

SYS-912GA-TNRT

SYS-821GV-TNR

SYS-421GU-TNXR

Next Best

SYS-121H-TNR

SYS-222H-TNR

SYS-222H-TN24R

Still Worth Selling

 

SYS-1029U-TN10RT

AS -1125HS-TNR

SYS-220H-TN24R

AS -4124GS-TNR

SYS-421GU-TNXR

SYS-4029GP-TRT

Attach more information that will help us.

Drag or click to upload a file.

Max size: 1024 KB | Allow file types: SV, Text, Word, Excel, PDF, JPG, GIF, PNG, RAR, ZIP

A Member of the Flux IT team will get back to you within the next 24 working hours with a valuation. Should you have any questions, call us on 03330 048885.

PowerEdge Models We Buy

Server Hardware

We are always looking to buy surplus new and used Dell PowerEdge servers. Sell your Dell office and enterprise servers for maximum market value. See below for a list of Dell server models we purchase. Don’t see your equipment listed? Let us know!

R350 (1U)

R750 (2U)

R7525 (2U)

R760 (2U)

R840 (2U)

R940 (3U)

R750XA (2U)

R6525 (2U)

MX740C Modular Servers (Blade & Multi-Node)

MX840C Modular Servers (Blade & Multi-Node)

C6525 Modular Servers (Blade & Multi-Node)

Attach more information that will help us.

Drag or click to upload a file.

Max size: 1024 KB | Allow file types: SV, Text, Word, Excel, PDF, JPG, GIF, PNG, RAR, ZIP

A Member of the Flux IT team will get back to you within the next 24 working hours with a valuation. Should you have any questions, call us on 03330 048885.

PowerEdge Models We Buy

Server Hardware

We are always looking to buy surplus new and used Dell PowerEdge servers. Sell your Dell office and enterprise servers for maximum market value. See below for a list of Dell server models we purchase. Don’t see your equipment listed? Let us know!

R350 (1U)

R750 (2U)

R7525 (2U)

R760 (2U)

R840 (2U)

R940 (3U)

R750XA (2U)

R6525 (2U)

MX740C Modular Servers (Blade & Multi-Node)

MX840C Modular Servers (Blade & Multi-Node)

C6525 Modular Servers (Blade & Multi-Node)

Attach more information that will help us.

Drag or click to upload a file.

Max size: 1024 KB | Allow file types: SV, Text, Word, Excel, PDF, JPG, GIF, PNG, RAR, ZIP

A Member of the Flux IT team will get back to you within the next 24 working hours with a valuation. Should you have any questions, call us on 03330 048885.

HPE ProLiant Models We Buy

Server Hardware

We are always looking to buy surplus new and used HPE ProLiant servers. Sell your HPE data centre and enterprise servers for maximum market value. See below for a list of HPE server models we purchase. Don’t see your equipment listed? Let us know!

HPE ProLiant DL360 Gen12

HPE ProLiant DL380 Gen11

HPE ProLiant DL345 Gen11

HPE ProLiant DL360 Gen10

HPE ProLiant DL380 Gen10

HPE ProLiant DL560 Gen10

HPE ProLiant DL385 Gen10 Plus

HPE ProLiant ML350 Gen11

HPE ProLiant ML30 Gen11

HPE ProLiant ML110 Gen11

HPE ProLiant DL20 Gen11 Intel Xeon E-2434

Attach more information that will help us.

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Max size: 1024 KB | Allow file types: SV, Text, Word, Excel, PDF, JPG, GIF, PNG, RAR, ZIP

A Member of the Flux IT team will get back to you within the next 24 working hours with a valuation. Should you have any questions, call us on 03330 048885.

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A Member of the Flux IT team will get back to you within the next 24 working hours with a valuation. Should you have any questions, call us on 03330 048885.

PowerEdge Models We Buy

Server Hardware

We are always looking to buy surplus new and used Dell PowerEdge servers. Sell your Dell office and enterprise servers for maximum market value. See below for a list of Dell server models we purchase. Don’t see your equipment listed? Let us know!

R350 (1U)

R750 (2U)

R7525 (2U)

R760 (2U)

R840 (2U)

R940 (3U)

R750XA (2U)

R6525 (2U)

MX740C Modular Servers (Blade & Multi-Node)

MX840C Modular Servers (Blade & Multi-Node)

C6525 Modular Servers (Blade & Multi-Node)

Attach more information that will help us.

Drag or click to upload a file.

Max size: 1024 KB | Allow file types: SV, Text, Word, Excel, PDF, JPG, GIF, PNG, RAR, ZIP

A Member of the Flux IT team will get back to you within the next 24 working hours with a valuation. Should you have any questions, call us on 03330 048885.

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A Member of the Flux IT team will get back to you within the next 24 working hours with a valuation. Should you have any questions, call us on 03330 048885.

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Simply, fill out the form below to tell us about your RFQ requirements. For a fast response call 03330 048885, or use Livechat.

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