Continue Shopping

Your cart is empty

    1 - 50 out of 227 Results

    G6

    490457-B21

    490457-B21

    • Manufacturer
      HPE
    View Product
    490459-B21

    490459-B21

    • Manufacturer
      HPE
    View Product
    490461-B21

    490461-B21

    • Manufacturer
      HPE
    View Product
    491507-B21

    491507-B21

    • Manufacturer
      HPE
    View Product
    495944-B21

    495944-B21

    • Manufacturer
      HPE
    View Product
    503582-B21

    503582-B21

    • Manufacturer
      HPE
    View Product
    503583-B21

    503583-B21

    • Manufacturer
      HPE
    View Product
    503584-B21

    503584-B21

    • Manufacturer
      HPE
    View Product
    503585-B21

    503585-B21

    • Manufacturer
      HPE
    View Product
    507889-B21

    507889-B21

    • Manufacturer
      HPE
    View Product
    507890-B21

    507890-B21

    • Manufacturer
      HPE
    View Product
    507891-B21

    507891-B21

    • Manufacturer
      HPE
    View Product
    512058-B21

    512058-B21

    • Manufacturer
      HPE
    View Product
    512059-B21

    512059-B21

    • Manufacturer
      HPE
    View Product
    512060-B21

    512060-B21

    • Manufacturer
      HPE
    View Product
    512061-B21

    512061-B21

    • Manufacturer
      HPE
    View Product
    512062-B21

    512062-B21

    • Manufacturer
      HPE
    View Product
    512715-B21

    512715-B21

    • Manufacturer
      HPE
    View Product
    512716-B21

    512716-B21

    • Manufacturer
      HPE
    View Product
    538757-B21

    538757-B21

    • Manufacturer
      HPE
    View Product
    573895-B21

    573895-B21

    • Manufacturer
      HPE
    View Product
    573897-B21

    573897-B21

    • Manufacturer
      HPE
    View Product
    575259-B21

    575259-B21

    • Manufacturer
      HPE
    View Product
    575260-B21

    575260-B21

    • Manufacturer
      HPE
    View Product
    575261-B21

    575261-B21

    • Manufacturer
      HPE
    View Product
    583133-B21

    583133-B21

    • Manufacturer
      HPE
    View Product
    583381-B21

    583381-B21

    • Manufacturer
      HPE
    View Product
    583383-B21

    583383-B21

    • Manufacturer
      HPE
    View Product
    589698-B21

    589698-B21

    • Manufacturer
      HPE
    View Product
    593899-B21

    593899-B21

    • Manufacturer
      HPE
    View Product
    600541-B21

    600541-B21

    • Manufacturer
      HPE
    View Product
    600543-B21

    600543-B21

    • Manufacturer
      HPE
    View Product
    600545-B21

    600545-B21

    • Manufacturer
      HPE
    View Product
    600739-B21

    600739-B21

    • Manufacturer
      HPE
    View Product
    600743-B21

    600743-B21

    • Manufacturer
      HPE
    View Product
    603975-B21

    603975-B21

    • Manufacturer
      HPE
    View Product
    603976-B21

    603976-B21

    • Manufacturer
      HPE
    View Product
    603977-B21

    603977-B21

    • Manufacturer
      HPE
    View Product
    603978-B21

    603978-B21

    • Manufacturer
      HPE
    View Product
    607122-B21

    607122-B21

    • Manufacturer
      HPE
    View Product
    637250-B21

    637250-B21

    • Manufacturer
      HPE
    View Product
    637353-B21

    637353-B21

    • Manufacturer
      HPE
    View Product
    637706-B21

    637706-B21

    • Manufacturer
      HPE
    View Product
    637708-B21

    637708-B21

    • Manufacturer
      HPE
    View Product
    638644-B21

    638644-B21

    • Manufacturer
      HPE
    View Product
    638645-B21

    638645-B21

    • Manufacturer
      HPE
    View Product
    638646-B21

    638646-B21

    • Manufacturer
      HPE
    View Product
    638647-B21

    638647-B21

    • Manufacturer
      HPE
    View Product
    638648-B21

    638648-B21

    • Manufacturer
      HPE
    View Product
    641512-B21

    641512-B21

    • Manufacturer
      HPE
    View Product

    Searching for an easier way to find system upgrades?

    Check out our user-friendly system scanner!

    Safely and easily scan your system with the Offtek System Scanner to find compatible upgrades and analyze your current memory and storage configuration.

    Start my free scan!

    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.

    Blog

    Why Memory Prices Are Rising and What It Means for Buyers

    Why Memory Prices Are Rising and What It Means for Buyers

    Memory prices are rising again, driven by AI demand, constrained supply, and structural changes in the market. This article explains what is causing the increases, how long they are likely to last, and what it means for businesses and consumers.

    06 Feb, 2026 View full Article
    What Crucial Stepping Back from the Consumer Memory Market Could Mean for Availability and Pricing

    What Crucial Stepping Back from the Consumer Memory Market Could Mean for Availability and Pricing

    With Crucial exiting the consumer memory market in 2026, many customers are questioning future availability and pricing. This article explains the impact of the change and why OFFTEK is well positioned to support memory upgrades without disruption.

    19 Jan, 2026 View full Article
    The Ideal Gaming Setup: Matching RAM, SSD, and GPU

    The Ideal Gaming Setup: Matching RAM, SSD, and GPU

    Build a balanced gaming PC: how to match RAM capacity and speed, SSD type, and GPU tier to avoid bottlenecks and get smooth performance. Offtek can help you choose RAM and SSDs for your exact device."

    05 Sep, 2025 View full Article

    FAQ

    Please click here to view our returns policy.
    Please click here to view our returns policy
    Please click here to view our returns policy

    Please click here to view our delivery page, which will confirm the countries that we are able to send to and the delivery costs.

    We update our memory configurator to contain the latest models on a regular basis but occasionally you may find that your model is not listed. Don't worry our memory specialists will be able to identify the type you require but we need more information. Please email our support team at support@offtek.co.uk with as much detail about your machine and any current memory you have installed. Once we have completed our research, we will then confirm via email the memory you require.

    Contact Sales Team

    If you are looking to order in larger quantities then please contact our sales staff using the link below. If you can provide them with the full details of your requirements they will be happy to provide you with a specific quotation.

    Quantity Requirements Form

    One of the more common reasons why modules do not work when installed is that they are not fully pushed home into the slot. If you can see the gold or tin teeth of the module when it is installed into the slot then you need to apply slightly more pressure when inserting the module. You can also view our install guides, which will help with the installation.

    If the product still does not work then please click here to view our returns policy, which will include details of how to return a product.
    We supply memory from the World's leading companies including Samsung, Hynix (Hyundai), Micron and Elpida (NEC), which accounts for a large proportion of the memory manufactured. Unfortunately we cannot guarantee to supply a specific brand of module as it depends on the stock we have available at the time.
    Non-ECC modules are used in the majority of desktops and laptops and do not have any error detection or correction capability. ECC modules are normally used in Servers and Workstations and are able to detect and correct certain types of memory errors and therefore offer an additional level of reliability. ECC registered modules contain a register which delays the data by one clock cycle and are generally used on Servers that require a lot of memory.
    We supply memory from the World's leading companies including Samsung, Hynix (Hyundai), Micron and Elpida (NEC), which accounts for a large proportion of the memory manufactured. All of our memory is of the highest quality and meets or exceeds the highest industry standards. This is why we can offer a limited lifetime warranty on all memory modules. Please note that specific warranty periods apply to flash memory cards and other hardware products. Please see our terms and conditions fo details.

    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

    Order with confidence - Excellent customer feedback Review us on Trustpilot