Unlock the Potential of Your IBM-Lenovo System x3550 M5 with OEM New and Refurbished Components

Unlock the full potential of your IBM-Lenovo System x3550 M5 with our certified genuine IBM-Lenovo original components. Designed specifically for this server model, these components ensure unparalleled reliability, compatibility, and performance. Manufactured by IBM-Lenovo, each component meets the brand's strict quality standards, providing peace of mind for your enterprise needs.

Our selection includes a range of components such as Controllers, RAM Memory - DDR4, Hard Disk Drives (HDD), Host Bus Adapters, Network Adapters, Processors, Power Supplies, and SSDs - SAS, SATA. Each component is engineered to optimize the performance of your System x3550 M5, ensuring seamless operation and enhanced efficiency.

Controllers are pivotal in managing data flow, ensuring that your server operates smoothly and efficiently. With IBM-Lenovo's certified genuine Controllers, you can expect improved data management and system responsiveness.

RAM Memory - DDR4 is crucial for multitasking and handling demanding applications. Our certified genuine DDR4 memory modules provide faster data processing and increased bandwidth, elevating your server's performance to new heights.

Hard Disk Drives (HDD) and SSDs - SAS, SATA offer robust storage solutions. While HDDs provide ample storage capacity, SSDs deliver faster data access speeds, reducing latency and improving overall system performance.

Host Bus Adapters and Network Adapters are essential for connectivity and data transfer. IBM-Lenovo's certified genuine adapters ensure high-speed data transmission and reliable network connections, vital for enterprise environments.

Processors are the heart of any server, and our certified genuine IBM-Lenovo processors guarantee optimal performance and energy efficiency, handling complex computations with ease.

Power Supplies are designed to provide stable and efficient power to your server, ensuring uninterrupted operation and reducing the risk of downtime.

We offer both new and refurbished certified genuine IBM-Lenovo components, providing cost-effective solutions without compromising on quality. Refurbished components are rigorously tested to meet IBM-Lenovo's standards, offering a budget-friendly alternative with the same reliability and performance as new parts.

By choosing certified genuine IBM-Lenovo components, you maintain system integrity and stability, ensuring your System x3550 M5 operates at peak efficiency. These components contribute to the longevity and cost-effectiveness of your server, making them a smart investment for any enterprise.

For Illustration Purposes Only

40,691 IBM-Lenovo Models Upgraded

Device Specifications

Your system memory specification is listed below, most importantly your maximum memory capacity:

Make + Model

IBM-Lenovo System x3550 M5
Device Type

Server
Maximum Memory Capacity

1.5TB (24 x 64GB LRDIMM), 768GB (24 x 32GB RDIMM)
Number of Slots

24 Slots

It's also important to know the amount and configuration of memory you currently have. The following links provide guidance on how to determine this Choosing The Right Upgrade

Although the memory can be installed one module at a time, the best performance comes from using matched pairs of modules.

Lifetime Warranty

Secure Payment

Free Technical Support

Free Delivery

100% Compatibility Guarantee

Offtek Memory (12)

SSDs (5)

OEM Parts (158)

Need to confirm your memory specs or buy in bulk?

For questions, reach out to our skilled Memory Specialists through any listed method for immediate and effective solutions.

Live Chat

Call Us: 0845 259 0202

support@offtek.co.uk

Device Specifications

Your system memory specification is listed below, most importantly your maximum memory capacity:

Make + Model

IBM-Lenovo System x3550 M5
Device Type

Server
Maximum Memory Capacity

1.5TB (24 x 64GB LRDIMM), 768GB (24 x 32GB RDIMM)
Number of Slots

24 Slots

Memory Installation Guides

Memory is one of the simplest upgrades that you can perform on your computer. To make it even easier our support team have created both installation videos and a written guide for you to follow.

Should you have any issues with your installation please see our FAQ page or contact our support team via live chat or at support@offtek.co.uk.

Installation Guide

Support

Search the Offtek Help Centre

Visit our Help and FAQ for detailed advice and guides.
Talk to one of our Memory Specialists to ensure compatibility.
Online and offline Support from ordering to installation we have you covered.
See our Blog for more detailed articles.

Fast Delivery

We're dedicated to getting your order to you as quickly as possible with our fast and reliable delivery services

Delivery Information

We make sure to you receive full tracking info so you're always in the loop and know exactly where your delivery is

Worldwide Delivery

We offer reliable worldwide delivery, making sure your order reaches you no matter where you are

Secure & Bespoke

We use secure and bespoke packaging to ensure your order arrives safely and in perfect condition

Delivery Options

UK Delivery

Royal Mail PacketPost 24 £1.14

1-2 Days

Royal Mail PacketPost 48 £0.00

4-5 Days

Royal Mail Special Delivery 1PM £10.20

1 Days

Royal Mail Special Delivery 9AM £47.40

1 Days

DHL Express Domestic £15.00

1 Days

International Delivery

More info

We now deliver to over 200 countries worldwide with DHL at incredibly low prices.

More info

Free Returns

Subject to exceptions, Offtek is happy to exchange or refund your purchase within 60 days of delivery. Please check here for more details on our returns policy and exceptions.

View Details

Fast Delivery

Free delivery options available
Express delivery options available
Multiple delivery options to suite all timescales and budgets
Detailed tracking information is provided with every order
Dispatched in secure, anti-static, custom packaging
Same day delivery options available on request (subject to stock and location)
Proof of delivery information sent instantly by email upon delivery
More Delivery FAQs

Fast Returns & Refunds

Return DRAM items within 30 days for a refund or replacement
Specialist support is available to help with any return queries
All returns are processed the same day they are received

Freepost returns labels provided
More Returns FAQs

Memory Solutions for Every Need

Unlike many suppliers Offtek offers a full back catalogue of memory and storage products ranging from legacy up to the latest specifications. We know that, through working with a wealth of clients since 1996, our ability to support these ranges ensures continued longevity in critical worldwide solutions. Ram memory is extremely important in ensuring your machine operates at its optimum performance. Our upgrades ensure that your computer will be performing at its best for years to come.

If you would like to know more about Offtek and our story please visit our Company Profile page.

What We Offer

At Offtek, we specialise in everything memory-related, ensuring that our customers receive the best possible products and services:

Worldwide Delivery: We ship our products across the globe, ensuring that no matter where you are, you can access our premium memory solutions.
100% Compatibility Guaranteed: Every product we offer is guaranteed to be compatible with your system, giving you peace of mind with every purchase.
Lifetime Warranty: We stand behind our DRAM products with a lifetime warranty, ensuring long-term reliability.
Free Technical Support: Our knowledgeable support team is available to assist with any questions or concerns.
Free Recycling: We are committed to sustainability and offer free recycling services for old memory modules.
Extensive Stock: We maintain a large stock of memory modules, ranging from legacy RAM to the latest technology, ensuring that we can meet the needs of all our customers.
Quality Control: All products undergo thorough testing prior to dispatch guaranteeing quality and customer satisfaction.
Multiple Payment Options: Credit/debit cards, PayPal, Apple Pay, Google Pay and Credit accounts for Public and Private sector businesses.
Secure and Protected: We ensure the safety of your payments and data. Visit our privacy and security pages for more information.
Legacy & Next Generation: With over 880,000 matched upgrades available, we ensure coverage for the majority of machines ever manufactured.
Since 1996: Offtek has been a trusted solution, operating since 1996 and among the pioneers of online e-commerce, launching in 1997.

Tech Support

For technical problems/queries please use one of the methods below to speak with one of our technical experts

Chat with us online: Live Chat

Email: support@offtek.co.uk

Call: 0845 259 0202

Chat To Our Sales Team

For sales enquires please use one of the methods below to speak with one of our sales experts

Chat with us online: Live Chat

Email: sales@offtek.co.uk

Call: 0845 259 0202

Check Your Orders

View order information, invoices, subscription

Order Support: Account login

Email: orders@offtek.co.uk

Call: 0845 259 0202

Request A Sales Callback

Fill out your information and one of our account managers will give you a call

Request a callback

Our Advantages

Fast Free UK

Delivery

60 Day Money Back

Guarantee

Over 25 years experience

In The Ram Industry

Online Since

1997

Over 500k+

Happy Customers

Twice Daily

Price Checks

Limited Lifetime

Warranty

Large

Stock Holding

Technical Staff

9+ Years Experience

Dedicated

Account Managers

100%

Compatibility

Environmentally

Friendly

The Advantages Of Adding More Ram Memory

Installing a memory module is one of the simplest upgrades that can be done to a computer. There is no configuration, no sitting around waiting for things to update and backup. It is simply plug and play!

The Simple Way To Boost Performance

Is your server running slow? Offtek server Memory boosts computer performance, making your machine run faster and smoother.

Why should I upgrade my server?

Improving the overall performance of the machine

Producing faster boot times

Allowing for increased multitasking

Decreasing latency in gaming

Extending the life of the machine

Increasing productivity

Reduce e-waste

Maximize your servers potential

Plug and Play Installation

No configuration or waiting for updates is needed—just plug and play. Adding memory is the easiest and cheapest upgrade for your server, providing the best performance boost.

Increased Virtualization & Performance

If you're implementing a new database, adding website functionality, adding users to applications, or experiencing an increasing virtual workload, adding more memory will help. More RAM in a server enables faster response times for users accessing larger databases via the cloud.

Reliability & High Quality

Not all memory is created equal. At Offtek, we ensure our RAM upgrades are A-grade quality and undergo rigorous checks before dispatch.

Brands We Supply

Explore Our Trusted Brands for Your Device Upgrade

Offtek have a relationship with many different brands in order to obtain the most compatible upgrade for your device. Below are some of the memory and SSD brands that we work with. If you are looking for a brand that we do not list contact our sales team and they will be happy to assist you in locating the brand you require.

Sustainability Efforts

At Offtek, sustainability is deeply woven into the fabric of our business. We understand the critical importance of protecting the environment for future generations, and we have committed ourselves to practices that not only reduce our environmental impact but also encourage our customers to do the same. Here's how we're making a difference:

Eco-Friendly Practices

We continuously strive to minimise our carbon footprint by adopting eco-friendly practices throughout our operations. This includes optimising our supply chain to reduce waste, implementing energy-efficient technologies in our offices and warehouses, and sourcing products from environmentally responsible manufacturers.

Free Recycling Programme

As part of our commitment to reducing electronic waste, Offtek offers a free recycling programme for customers. We ensure that old memory modules, SSDs, and other electronic components are disposed of responsibly, preventing harmful materials from ending up in landfills. This initiative not only aids in waste reduction but also promotes responsible consumption and disposal practices among our customers.

Sustainable Packaging

Offtek has transitioned to using sustainable packaging materials wherever possible. We carefully design our packaging to be both minimal and protective, utilising recyclable and biodegradable materials to reduce our environmental impact without compromising product safety.

Longevity Through Upgrades

One of the most significant contributions to sustainability that we encourage is the upgrading of existing technology. By upgrading your RAM or SSD, you are not just enhancing your system's performance - you are also ensuring the longevity of a device that might otherwise have been discarded and sent to landfill. Upgrading components allows for the extended use of computers and devices, reducing the demand for new manufacturing and lowering the overall electronic waste footprint.

Partnerships for Sustainability

We collaborate with suppliers and organisations that share our commitment to sustainability. By partnering with like-minded companies, we ensure that our products are produced and delivered in a manner that respects the environment and promotes sustainable practices.

Ongoing Commitment

Our journey towards sustainability is ongoing. We are constantly exploring new ways to enhance our environmental efforts, whether through adopting new technologies, improving our operational practices, or launching community initiatives. Offtek is dedicated to making meaningful contributions to environmental conservation, and we encourage our customers to join us in these efforts.

By choosing to upgrade rather than replace, you are not only improving your device's performance but also making a conscious choice to reduce environmental impact. At Offtek, we believe that small, sustainable choices add up to significant positive change, and together, we can contribute to a healthier planet for future generations.

View All

Anonymous

Arrived promptly fitted and works perfectly.

5.0

Jan 12, 2026

Mr DAVE WARD

Great Product, Great Service and the module is fine for my PC

5.0

Jan 07, 2026

Stefan

Good product range, had what I wanted, reasonable price, prompt delivery

5.0

Dec 30, 2025

Alan Napier

It was very easy to identify the correct RAM chips for my 2015 iMac. They were reasonably priced and arrived very promptly, despite a busy time of the year. I was keep well informed about the order

5.0

Dec 24, 2025

Ian Thomas

Extremely simple to find what I wanted, order and pay. Discovered I had ordered the incorrect product. Received returns details immediately and received full refund as soon incorrect product returned. Great service. Will use OFFTEK for all future requirements.

5.0

Dec 24, 2025

leszek koscielny

great seller and very nice and helpful customer service.

5.0

Dec 22, 2025

Cristiana Petrache

First time getting a RAM change for my laptop, and the delivery process and installation went smoothly. The parts arrived in a couple days, and the actual installation was simple. Would use this service again!

5.0

Dec 22, 2025

Albert Winthrop

Fast and efficient.

5.0

Dec 18, 2025

Hoang Bgvy

OFFTEK made finding tech accessories painless. The product arrived quickly, matched the description, and worked flawlessly right out of the box. It's a reliable spot for gadgets without the usual online guesswork.

5.0

Dec 18, 2025

Ian Thomas

Thr RAM I ordered was for a later version of my laptop. The agent on the online chat was extremely helpful and arranged for me to return the incorrect product. They then identified the correct product which i oredered. I am really impressed with the service and extremely helpful response despite the fact that it was my error.

5.0

Dec 16, 2025

Heather Collins

Very satisfied costumer.

5.0

Dec 13, 2025

Ian Bellamy

Items ordered delivered on time, exactly what I required and at a good price from a Professional company who have an extensive stock of items.

5.0

Dec 10, 2025

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Unlock the Potential of Your IBM-Lenovo System x3550 M5 with OEM New and Refurbished Components

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