You want to expand the memory of your laptop, but there is no free slot inside for SSD? Or do you urgently need to transfer data from a new drive, but disassembling the case is scary? Connection SSD through USB - a simple solution that works with almost any laptop, from budget Lenovo IdeaPad before the game ASUS ROG. In this article we will look at all the methods: from using adapters to creating an external drive from an old drive.

The main advantage of the method is that there is no need to open the case and risk the warranty. Cons? Data transfer speed may drop by 20-30% compared to a direct connection to SATA/M.2. But for backup, OS installation or file storage, this is more than enough. Below are specific instructions based on your type. SSD (2.5" SATA, mSATA or NVMe M.2) and available adapters.

1. What adapter is needed to connect an SSD to a laptop via USB?

The choice of adapter depends on SSD type And connection protocol. A mistake here will cost a waste of money: for example, an adapter for SATA not suitable for NVMe, even if the connector M.2 externally identical. Let's look at the main options:

  • 🔌 2.5" SATA SSD → adapter needed USB-to-SATA (For example, ORICO 2599 or Sabrent EC-UASP). Supports speed up to 6 Gbps (actually ~400 MB/s).
  • 🖥️ M.2 SATA (B-key or B+M-key) → adapter with connector M.2 B-key (For example, StarTech M.2 to USB). Important: do not confuse it with NVMe - visually the connectors are similar, but the protocols are different!
  • ⚡ M.2 NVMe (M-key) → you need an adapter that supports PCIe (For example, ASUS ROG Strix Arion or Sabrent EC-SSHD). Speed up to 10 Gbps (actually ~800 MB/s).
  • 💾 mSATA → rare format, but there are adapters (for example, Syba SD-MSAUD-48063). Same speed SATA III.

How to determine your type SSD? Look for the following on the disc box or label:

  • SATA 6Gb/s → this SATA (even if the connector M.2).
  • PCIe 3.0 x4 or NVMe → this NVMe.
  • mSATA → separate format, not compatible with M.2.

⚠️ Attention: Adapters with USB 2.0 (black connector) will give speed no higher 40 MB/s - this is only enough to transfer documents. To work with videos or games, take USB 3.0/3.1 (blue connector) or Type-C.
📊 What type of SSD are you planning to connect?
  • 2.5" SATA
  • M.2 SATA
  • M.2 NVMe
  • mSATA
  • I don't know

2. Step-by-step instructions: connecting an SSD to a laptop via USB

Let's consider a universal algorithm using an example 2.5" SATA SSD and adapter ORICO 2599. For other types of drives, the steps are similar, only the connectors differ.

Turn off the laptop and disconnect the charger

Check the integrity of the adapter cable

Connect the adapter to the laptop's USB port (preferably 3.0)

Install the SSD into the adapter connector until it clicks

Turn on the laptop and wait for the disk to be recognized -->

If after connecting SSD not defined:

  1. Open Device Manager (Win + X → Device Manager).
  2. Check section Disk devices — if there is an unknown device with a yellow exclamation mark, update the driver.
  3. Go to Disk management (Win + R → diskmgmt.msc). If the drive appears as "Not initialized", right-click and select "Initialize disk" (choose GPT for disks >2 TB).

For NVMe SSD an additional driver may be required (for example, for a controller ASMedia or JMicron). Download it from the adapter manufacturer's website. If the laptop does not see the disk even after initialization, check:

  • 🔋 Is the adapter powered by USB (some models require additional power via Micro-USB).
  • 🔌 Is the drive connected correctly (turn it over and try again).
  • 🖥️ Is the USB port working (try another port or laptop).

💡

If the adapter gets hot or the drive turns off during operation, use a USB hub with external power. This will solve the problem of lack of energy for NVMe SSD, which consume up to 3 W.

3. Formatting and preparing the SSD for use

New SSD usually unformatted. To use it as an external drive, you need to create a partition and select a file system. Optimal options:

  • NTFS - for Windows (maximum file size 16 TB, supports encryption).
  • exFAT - for compatibility with macOS And Linux (maximum file size 16 EB, but no changelog).
  • FAT32 - only for flash drives up to 32 GB (not suitable for SSD).

Formatting instructions:

  1. Open Disk management (Win + R → diskmgmt.msc).
  2. Find yours SSD (usually marked as "Not distributed").
  3. Right click → "Create Simple Volume".
  4. Specify the volume size (the default is the entire disk).
  5. Assign a drive letter (for example, D:).
  6. Select file system (NTFS or exFAT) and mark "Quick Format".

⚠️ Attention: If SSD previously used in another device (for example, in PS5 or MacBook), first delete all partitions via DiskPart: 
diskpart

list disk


select disk X (где X — номер вашего SSD)


clean

Otherwise, Windows may not allow you to format the disk.

File system Max. file size Compatibility Encryption support
NTFS 16 TB Windows, Linux (reading) Yes (BitLocker)
exFAT 16 EB Windows, macOS, Linux No
FAT32 4 GB All systems No
APFS 8 EB macOS (read-only on Windows) Yes (FileVault)

4. SSD speed over USB: what to expect?

Theoretical speed USB 3.0 — 5 Gbps (~600 MB/s), but in practice you will get:

  • 🐢 2.5" SATA SSD through USB 3.0: 350-420 MB/s (protocol limit SATA III).
  • ⚡ NVMe SSD through USB 3.1 Gen2: 700-900 MB/s (adapter limit).
  • 🐌 Any SSD through USB 2.0: 30-40 MB/s (like an old flash drive).

For comparison: the same Samsung 980 Pro in slot PCIe 4.0 laptop gives 7000 MB/s, and through USB-C - maximum 1000 MB/s. The difference is noticeable when working with large files (videos, games, databases).

How to check your connection speed?

  1. Download the utility CrystalDiskMark (free).
  2. Choose yours SSD in the drop-down menu.
  3. Run the test Seq Q32T1 (sequential write/read).
  4. Compare the results with the table below.

Why is the speed lower than expected?

1. **USB 2.0 port**: Even an NVMe SSD will run at 40MB/s.

2. **Bad cable**: use a certified USB 3.0/3.1 (blue connector).

3. **Adapter overheating**: NVMe SSDs heat up to 70°C, which causes throttling (reduced speed).

4. **Data Fragmentation**: If the disk was previously used, run the command defrag C: /L (safe for SSD, since this is not defragmentation, but optimization).

5. **Adapter controller**: cheap models on a chip JMicron slow down when recording small files.

5. Using SSD via USB: Practical Scenarios

External SSD through USB useful not only for storing files. Here are 5 non-obvious uses:

  • 🎮 Game drive: many games (eg GTA V or Cyberpunk 2077) are launched from external NVMe SSD through USB 3.1 without lags. The main thing is higher reading speed 400 MB/s.
  • 🖥️ Portable Windows: can be installed Windows To Go to external SSD and boot from it on any PC. Suitable for Windows 10/11 Enterprise.
  • 📹 Video editing: Adobe Premiere Pro or DaVinci Resolve work from external NVMe SSD almost no loss in performance (at speeds > 500 MB/s).
  • 🔧 Backup: SSD through USB 5-10 times faster than normal HDD, to create backups via Acronis True Image or Macrium Reflect.
  • 🐧 Linux Live: you can deploy a full-fledged one Ubuntu or Kali Linux on an external drive and use it as a portable system.

To install Windows to external SSD through USB:

  1. Connect the drive to your laptop.
  2. Boot from the installation flash drive Windows.
  3. At the disk selection stage, delete all partitions on SSD and create a new one.
  4. Install the system on an external drive (you may need to manually specify the driver for the adapter).

⚠️ Attention: Not all laptops support booting from USB SSD in UEFI-mode. If after installation Windows the system does not boot, BIOS turn off Secure Boot and turn it on Legacy Support.
💡

For maximum speed, use an adapter with USB 3.1 Gen2 Type-C and cable Thunderbolt 3 (up to 40 Gbps). This will allow NVMe SSD run at almost full speed (up to 2500 MB/s).

6. Possible problems and their solutions

Even with the correct adapter, errors can occur. Let's look at typical cases and ways to eliminate them:

Problem Possible reason Solution
Disk is not detected Drive letter is missing Open Disk management → assign a letter manually.
The drive connects but disappears after a few minutes USB power shortage Use a Y-cable or powered hub.
Low write speed (<100 MB/s) Adapter on a chip JMicron or ASM1051 Update the adapter firmware or buy a model from ASM235CM.
The disk is defined as "Write protected" Activated Write Protect on adapter Check the switch on the adapter body or format via DiskPart.

If SSD defined but not formatted:

  1. Try formatting via Linux (boot from Ubuntu Live USB and use GParted).
  2. Check the disk for errors: chkdsk D: /f /r (replace D: to your drive letter).
  3. If the disk is "dead" (not detected anywhere), try restoring the data via R-Studio or TestDisk.

For NVMe SSD in on-chip adapters ASMedia ASM2362 Manual driver installation may be required. Download it from official website and install via Device Manager (update driver for unknown device).

7. TOP 5 adapters for connecting SSD via USB (2026)

The choice of adapter depends on the type SSD and budget. We tested 15 models and selected the best ones in terms of price/quality ratio:

  • 🥇 Sabrent EC-SSHD (NVMe M.2) — speed up to 1000 MB/s, aluminum housing, support UASP. Price: ~3500 ₽.
  • 🥈 ORICO M.2 NVMe Enclosure - cheaper Sabrent, but gets hot under prolonged load. Speed: 900 MB/s. Price: ~2800 ₽.
  • 🥉 ASUS ROG Strix Arion - premium adapter with RGB and a radiator. Speed: 1050 MB/s. Price: ~6000 ₽.
  • 4️⃣ StarTech USB3S2SAT3CB (2.5" SATA) - reliable and compact, speed 450 MB/s. Price: ~1500 ₽.
  • 5️⃣ Baseus Aluminum M.2 Case - budget option for NVMe with a metal body. Speed: 800 MB/s. Price: ~2200 ₽.

For professional use (video editing, games) take Sabrent or ASUS. Enough for backup ORICO or Baseus. If you need an adapter for mSATA - pay attention to Syba SD-MSAUD-48063 (~2500 ₽).

Before purchasing please check:

  • Compatible with your type SSD (see section 1).
  • Availability UASP (speeds up work by 20-30%).
  • Housing material (aluminum dissipates heat better).

Frequently asked questions (FAQ)

Is it possible to connect a PlayStation 5 SSD to a laptop via USB?

Yes, but with reservations. PS5 uses NVMe SSD with interface PCIe 4.0, so you need an adapter with USB 3.1 Gen2 or Thunderbolt 3. However:

  • The disk will be formatted as exFAT - data from PS5 will have to be deleted.
  • Speed will be limited 1000 MB/s (in PS5 - up to 7000 MB/s).
  • Some models (eg WD Black SN850X) require firmware to work on Windows.

To back up games from PS5 better to use external HDD through USB - this way you don’t have to disassemble the console.

Why doesn't the laptop see the SSD via USB, although the adapter works?

There are several reasons:

  1. Uninitialized disk: open Disk management and initialize it (select GPT).
  2. Drive letter conflict: Assign a different letter (for example, Z:).
  3. Driver missing: for NVMe A controller driver may be required (download from the adapter manufacturer's website).
  4. Lack of nutrition: Connect the adapter to the port USB 3.0 on the back of the laptop (the current is higher there).
  5. Damaged disk: check via CrystalDiskInfo (parameter "Health Status" must be "Good").

If the disk is detected in BIOS, but not on Windows, the problem is in the drivers. If not determined even in BIOS — the adapter or cable is faulty.

Can I use an external SSD via USB as a system drive?

Yes, but with restrictions:

  • Windows 10/11: officially supported only in version Enterprise (Windows To Go). For Home/Pro will require a bypass through DISM or WinNTSetup.
  • macOS: Can be installed externally SSD, but system updates may break the bootloader.
  • Linux: works without problems (use Ubuntu Live USB for installation).

Disadvantages of this solution:

  • Loading speed is slower than from an internal drive.
  • Not all laptops support booting from USB in UEFI-mode.
  • If you frequently connect/disconnect the connector USB may become loose.

What adapter is needed to connect an M.2 SATA SSD (not NVMe)?

For M.2 SATA (with connector B-key or B+M-key) any adapter that supports SATA III. The main thing is not to confuse it with NVMe! Please note:

  • Connector: must be B-key (notch on right side) or universal B+M-key.
  • Protocol: adapter description must indicate "SATA", not "PCIe".
  • Speed: maximum 6 Gbps (~550 MB/s), even if the adapter is connected to USB 3.1.

Recommended models:

  • Sabrent EC-SSHD (universal, but expensive).
  • ORICO M.2 SATA Enclosure (budget option).
  • StarTech M.2 SATA to USB (reliable, with a 2-year warranty).

Is it possible to connect an SSD and HDD at the same time via one USB port?

Technically yes, but with caveats:

  • Via USB hub: If the hub is externally powered, you can connect both drives. The speed will be divided between them.
  • Via docking station: There are devices with multiple slots (for example, ORICO 6518US3-C), but they are expensive (~8000 ₽).
  • Via Y-cable: only if both disks 2.5" SATA and the adapter supports Port Multiplier (rare).

Problems that may arise:

  • Lack of nutrition (especially for HDD, which consumes up to 2.5 W).
  • Reduced speed due to bandwidth sharing USB.
  • Drive letter conflict (resolved manually in Disk management).

For continuous operation, it is better to use separate ports or a docking station with Thunderbolt.