Replacing an old HDD with a fast one SSD is one of the most effective ways to speed up your laptop. But what if you want to keep both drives? The solution is to install second SSD instead of an unnecessary DVD drive using a special adapter (adapter). This upgrade allows you to gain SSD speed without losing storage capacity.

However, not all adapters fit all laptops. Dimensions, interfaces, and even the thickness of the case can be a barrier. In this article we will look at how to choose the right one adapter for SSD to laptop drive, avoid mistakes when purchasing and install it without risk to your equipment. We will also answer questions about compatibility, speed and possible problems after the upgrade.

Why do you need an adapter for SSD to laptop drive?

The main reason is increased performance without sacrificing storage capacity. Instead of slow DVD drive, which is used once a year, you get:

  • 🚀 OS boot speed — SSD speeds up Windows/Linux startup by 3–5 times compared to HDD.
  • 💾 Extra space — you can leave the old HDD for files, and install the system and programs on the SSD.
  • 🔧 Versatility — the adapter allows you to use 2.5" SSD or even M.2 NVMe (depending on the adapter model).
  • 💰 Savings - cheaper than buying a laptop with two SSD slots.

But there are also nuances. For example, not all laptops support booting from a drive in the optical drive slot. And some adapters may not be suitable in terms of thickness or type of connector. Therefore, it is important to check before purchasing compatibility.

📊 How often do you use the DVD drive in your laptop?
  • Never
  • Once every few months
  • Regularly (films, programs)
  • I don't know if I have it

Types of adapters: which one to choose?

Adapters for installing an SSD instead of a DVD drive are divided into three main types:

  1. Standard 9.5 mm - the most common option for most laptops (for example, Lenovo ThinkPad, Dell Latitude). Suitable for 2.5" SATA SSD.
  2. Ultra-thin 12.7mm - for laptops with a thick body (for example, some models HP Pavilion or Asus ROG). Often equipped with spacers to adjust the thickness.
  3. M.2 NVMe slot - a rare but promising option that allows you to install NVMe SSD (For example, Samsung 980 Pro) instead of DVD. Requires support verification PCIe motherboard.

The adapters also differ in connection interface:

  • 🔌 SATA II (3 Gb/s) - outdated, limits SSD speed.
  • 🔌 SATA III (6 Gb/s) — the optimal choice for modern drives.
  • 🔌 PCIe (for M.2 NVMe) - maximum speed, but not all laptops support it.

Important: some cheap adapters have plastic case, which may crack during installation. It is better to choose models with metal frame (For example, ORICO or Sabrent).

How to check the drive type in a laptop?

Open "Device Manager" (Win + X → Device Manager), find the "DVD and CD-ROM" section. If the model contains the words "Slim" or "UltraSlim", most likely you need a 12.7 mm adapter. The exact thickness can be measured with a caliper or ruler (standard - 9.5 mm).

Compatibility: how not to make a mistake with your choice?

The main mistake when buying an adapter is Incorrect drive thickness. For example, if you buy a 9.5 mm adapter for a laptop with a 12.7 mm drive, the SSD simply will not fit into place. To avoid this:

  1. Check laptop model on the manufacturer's website (section "Specifications" → "Optical Drive").
  2. Use services like Crucial Advisor or Kingston SSD Finder — they will suggest compatible adapters.
  3. Measure the drive with a tape measure: standard - 128 × 128 × 9.5 mm, "thick" models - up to 12.7 mm.

Also pay attention to:

  • ⚡ UEFI support - if the laptop is new (2015 and later), the adapter must support GPT markup for correct loading.
  • 🔄 Availability of fastenings - some adapters require additional screws (usually included in the kit).
  • 🛠️ Hot-swap support - rare, but useful for quickly replacing an SSD without turning off the laptop.
Laptop brand Typical Drive Thickness Recommended adapter
Lenovo ThinkPad T/X/W 9.5 mm ORICO 2599US3 or Sabrent EC-DFLT
Dell Latitude E-Series 12.7 mm Nzxt 9.5mm-12.7mm (with gaskets)
HP EliteBook 840/850 9.5 mm Kingston SNV2S (with metal body)
Asus ROG Strix 12.7 mm Inateck HB4007 (with UEFI support)
⚠️ Attention: If your laptop is older than 2012, check support AHCI mode in BIOS. Without it, the SSD will operate at HDD speed.

Step-by-step installation instructions

Installing the adapter does not require a soldering iron or special skills, but will require care. Here's what you'll need:

  • 🔧 Screwdriver (usually cross PH0 or sprocket T5/T6).
  • 🧲 Antistatic wrist strap (or touch the metal case of the laptop before work).
  • 📦 New SSD (we recommend Samsung 870 EVO or Crucial MX500).
  • 💿 Adapter with a set of screws.

Next follow the instructions:

  1. Turn off your laptop and disconnect the battery (if it is removable).
  2. Remove the bottom cover — it is usually secured with 5–10 screws. In some models (for example, MacBook Pro) will be required pentalobe screwdriver.
  3. Remove the DVD drive:
    • Unscrew the fixing screw (usually one, next to the connector).
    • Gently pull the drive towards you - it should come out of the connector.
  4. Install the SSD into the adapter:
    • Screw the drive to the adapter (screws are usually included).
    • Connect SATA cable (if it is removable).
  • Insert the adapter into the slot instead of the DVD drive and secure with a screw.
  • Assemble your laptop and turn it on.

    • I studied the laptop model and drive type|

    I bought an adapter with a metal case|

    Prepared antistatic protection|

    Downloaded drivers for SSD in advance (if needed)|

    Made a backup copy of the data -->

    ⚠️ Attention: If the SSD is not detected after installation, check:
    • Contact tightness (reconnect the cable).
    • BIOS Settings (Boot Mode must be UEFI, not Legacy).
    • Support AHCI in BIOS (enable if disabled).
    💡

    If the laptop does not see the SSD, try initializing it through Disk Management (Win + R → diskmgmt.msc). Right-click on the unallocated space and select "Create simple volume".

    Common problems and their solutions

    Even with proper installation, problems may occur. Let's look at the most common ones:

    1. SSD is not detected in BIOS

    Reasons:

    • 🔌 Poor contact — check whether the adapter is tightly inserted into the connector.
    • ⚙️ Incorrect BIOS settings - turn on AHCI Mode and turn off Secure Boot (if using Linux).
    • 🛠️ Incompatible adapter - some cheap models do not support UEFI.

    2. Laptop won't boot from SSD

    Solutions:

    • 🔄 Reinstall the system on the SSD from the flash drive (by selecting it in Boot Menu when loading).
    • 📁 Transfer bootloader to SSD using Macrium Reflect or Clonezilla.
    • 🔧 Update your BIOS - older versions may not support new SSDs.

    3. SSD is slower than it should

    Possible reasons:

    • 🐢 The adapter is connected to SATA II instead of SATA III (check laptop specs).
    • 🗑️ Mode enabled IDE instead of AHCI in BIOS.
    • 🧹 SSD is not optimized - run it Trim (on Windows: Open command line → wmic diskdrive get model,name,index → fsutil behavior query DisableDeleteNotify).
    💡

    If the SSD speed is below 300 MB/s, it is most likely connected to SATA II. In this case, upgrading to NVMe (if supported) will give a greater performance boost.

    Comparison of SSD in drive vs. main slot: which is better?

    Many users doubt whether it is worth installing an SSD instead of a DVD if the laptop already has a main slot for M.2 or 2.5" SATA. Let's look at the pros and cons of each option:

    Criterion SSD in main slot SSD in adapter instead of DVD
    Speed Maximum (SATA III or PCIe 4.0 for NVMe) Limited to SATA III (if adapter is not PCIe)
    Convenience Easy to replace without disassembling the laptop Requires disassembly for installation/replacement
    Volume Limited to one drive (if there is no second slot) You can use both drives (HDD + SSD)
    Cost No additional costs Requires purchase of an adapter (from 500 to 2000 rubles)

    Conclusion: if in a laptop there is already a free M.2 slot, it's better to install there NVMe SSD — it will work 3–5 times faster than the SATA drive in the adapter. But if there is no slot, but you want to save the HDD for files, then an adapter is the optimal solution.

    Top 5 adapters for SSD to laptop drive (2026)

    Based on user reviews and tests, we have compiled a rating of the best adapters:

    1. ORICO 2599US3 — universal adapter for 9.5 mm drives, metal case, support UEFI. Price: ~1200 rub.
      • ✅ Suitable for most laptops (Lenovo, Dell, HP).
      • ❌ No spacers for 12.7mm drives.
    2. Sabrent EC-DFLT — premium version with reinforced fastening, support SATA III And UASP (acceleration of data transfer). Price: ~1800 rub.
      • ✅ Screws and screwdriver included.
      • ❌ More expensive than analogues.
    3. Inateck HB4007 — a budget adapter with a plastic case, but reliable contacts. Price: ~600 rub.
      • ✅ Cheap and light.
      • ❌ Not suitable for frequent SSD removal.
    4. Nzxt 9.5mm-12.7mm — adapter with adjustable thickness (suitable for both types of drives). Price: ~1500 rub.
      • ✅ Versatility.
      • ❌ Takes up more space in the case.
    5. Kingston SNV2S - adapter with support M.2 NVMe (for laptops with a PCIe slot in the drive). Price: ~2500 rub.
      • ✅ Speed up to 3500 MB/s (if laptop supports).
      • ❌ Requires motherboard compatibility check.

    When choosing, focus on reviews for your laptop model - even the best adapters may not be suitable due to design features.

    FAQ: answers to frequently asked questions

    Is it possible to install an SSD in a laptop drive without an adapter?

    No, that's impossible. SSD and DVD drives have different connectors and form factors. The adapter is needed for:

    • Transformations SATA connector drive into the slot for 2.5" SSD.
    • Fixing the drive in the laptop case.

    The exception is rare laptops with support M.2 in the drive slot (for example, some Dell Precision), but even there a special adapter is required.

    Will the SSD in the adapter be slower than the one in the main slot?

    Depends on the interface:

    • If the adapter is connected to SATA III, the speed will be the same as in the main slot (up to 550 MB/s).
    • If to SATA II — limit of 300 MB/s.
    • For NVMe SSD the speed in the adapter depends on the version PCIe (For example, PCIe 3.0 x2 will give ~1500 MB/s).

    Check the laptop specifications - sometimes the drive is connected to a slower controller.

    Do I need to transfer the system to the SSD in an adapter or can I leave it on the HDD?

    You can leave the system on the HDD, but this irrational:

    • SSD speeds up OS loading by 3–5 times.
    • Programs on the SSD open instantly.
    • The HDD will slow down the system during background operation (indexing, updates).

    We recommend migrating the system to an SSD using Macrium Reflect or Clonezilla, and leave the HDD for files.

    Can an adapter damage a laptop?

    If installed correctly, no. Risks arise if:

    • Use poor quality adapter with poor contacts (may cause a short circuit).
    • Connect SSD without grounding (static electricity may damage the controller).
    • Apply excessive force during installation (you can break the connector on the motherboard).

    To avoid problems, buy adapters from trusted brands (ORICO, Sabrent) and follow the instructions.

    How can I check if my laptop supports booting from an SSD drive?

    Verification methods:

    1. Go to BIOS (F2/Del/Esc when booting) and see if the drive appears in the list of boot devices.
    2. Connect the SSD to the laptop via USB-SATA adapter and try to boot from it. If it works, the adapter in the drive will also work.
    3. Check the laptop model on the manufacturer's website - the specifications should indicate whether it is supported Boot from Optical Bay.

    If the laptop is older than 2010, you may need BIOS modification (for example, for Lenovo T400/T500).