# Welcome to IODD Guide

## 😃 Welcome to IODD Guide

<figure><img src="https://3026209848-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FhmDmKL86eZmYvioTSXe5%2Fuploads%2FMcEJeqMAmlW1jzhRrkP0%2FBrandMain2025.png?alt=media&#x26;token=4f6806c1-96d7-4077-9cbf-f970e1e60cd2" alt="IODD Brand Main 2025"><figcaption><p>Experience the ultimate virtual drive and encryption solution.</p></figcaption></figure>

<figure><img src="https://3026209848-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FhmDmKL86eZmYvioTSXe5%2Fuploads%2FkTNlkggyiXQzDHqmGY6v%2FMINI%20PRO%20Compare.png?alt=media&#x26;token=4f01b378-8f98-497b-9d0c-d768d0f85e7d" alt="MINI PRO Comparison"><figcaption><p>IODD Series Comparison: Find the right model for your needs.</p></figcaption></figure>

### 🔔 Latest News

Currently sold products use the latest firmware, so no additional update is required. If there is a new update after **May 29, 2024**, we will announce it here.

### ✨ What's New

**IODD TRIM Tool Released** A new Windows utility designed to send TRIM commands to external USB SSDs, maintaining performance and extending lifespan.

* [**IODD TRIM Tool Manual**](https://help.iodd.kr/various-functions/iodd-trim-tool)

***

### 📘 Introduction

This documentation provides a comprehensive, step-by-step guide to effectively using your IODD device. While the instructions are primarily tailored for the **ST/LK series**, most information is applicable to the **MINI series** as well.

#### ⚠️ Pre-use Checklist

To ensure stable performance and data integrity, please review these requirements:

* **Power Supply**: Connect the IODD to a **rear USB port** on your PC. Laptop users should use a **powered USB hub** for consistent voltage.
* **Encryption Conflict**: Hardware encryption **cannot** be used simultaneously with OS-level encryption (e.g., **BitLocker**).
* **Cable Length**: Use a USB cable **shorter than 50cm** to prevent signal degradation.
* **Disk Compatibility**:
  * **ST300 / ST400 / LK100**: **2.5-inch** **7mm** HDD/SSD.
  * **2531 / 2541 (Legacy)**: **2.5-inch** HDD/SSD up to **9.5mm**.
  * **MINI (Legacy)**: M.2 SATA **2242** SSD.
  * **MINI PRO**: M.2 SATA **2280** SSD.

### 📊 Hardware Model Comparison

| Feature           | ST400 / MINI PRO |       LK100      |       ST300      |   2541 (Legacy)   |   2531 (Legacy)   |   MINI (Legacy)   |
| ----------------- | :--------------: | :--------------: | :--------------: | :---------------: | :---------------: | :---------------: |
| **Encryption**    |    AES256 XTS    |    AES256 XTS    |         ❌        |     AES256 XTS    |         ❌         |     AES256 XTS    |
| **Virtual ODD**   |         ✅        |         ❌        |         ✅        |         ✅         |         ✅         |         ✅         |
| **Virtual HDD**   |     ✅ (3 LUN)    |         ❌        |     ✅ (3 LUN)    |     ✅ (4 LUN)     |     ✅ (4 LUN)     |     ✅ (3 LUN)     |
| **Interface**     | Type-C (USB 3.1) | Type-C (USB 3.1) | Type-C (USB 3.1) | Micro-B (USB 3.0) | Micro-B (USB 3.0) | Micro-B (USB 3.0) |
| **Controls**      |   Tactile Keys   |   Tactile Keys   |   Tactile Keys   |     Touch Keys    |      Jog Dial     |    Tactile Keys   |
| **Max PIN**       |     38 Digits    |     38 Digits    |        N/A       |     15 Digits     |        N/A        |     15 Digits     |
| **2nd P.W.**      |         ✅        |         ✅        |         ❌        |         ❌         |         ❌         |         ❌         |
| **Admin App**     |         ✅        |         ✅        |         ❌        |         ❌         |         ❌         |         ❌         |
| **Internal Disk** |  2.5" 7mm / 2280 |     2.5" 7mm     |     2.5" 7mm     |     2.5" 9.5mm    |     2.5" 9.5mm    |      M.2 2242     |

{% hint style="warning" %}
**Safe Removal (Mandatory)** To prevent data corruption, **always use the "Safely Remove Hardware" option in your PC's operating system.** The hardware button ejection on the IODD may not be sufficient depending on your OS configuration.
{% endhint %}

***

### 🚀 Getting Started

#### First Time Using IODD?

If you haven't assembled your device yet, start here:

* [**Disk Assembly Guide (ST/LK)**](https://help.iodd.kr/disk-assembly-st-lk)

If your hardware is ready, follow these core functions:

#### 1. Virtual Drive Feature

Learn how to mount ISO, VHD, and RMD files.

* [**Drive Setup Guide**](https://help.iodd.kr/bootable-virtual-drive/drive-setup)

#### 2. Encryption Function

Secure your data with AES-256 hardware encryption.

* [**Encryption Guide (ST/LK/MINI PRO)**](https://help.iodd.kr/aes256-encryption-mini-pro-st-lk/encryption-guide)
* [**Encryption Guide (MINI Legacy)**](https://help.iodd.kr/aes256-encryption-mini/iodd-mini-encryption)

#### 3. Simultaneous Use (Encryption + Virtual Drive)

For maximum security and utility, follow this specific order:

1. **Configure Encryption**: Set up your password first.
2. **Setup Virtual Drive**: Once encrypted, partition and copy your files.

***

{% hint style="danger" %}
**Encryption Compatibility Notice**

Due to an upgrade in the encryption algorithm, disks encrypted with **2541 / SecureDock** are **NOT compatible** with the **ST400 / LK100 / MINI PRO**.

**To migrate your disk to a newer model:**

1. **Back up** all data to a safe location.
2. **Initialize** the disk on the new IODD device.
3. Set a new password and restore your data.

**Compatibility Map:**

* <mark style="color:blue;">ST400 ↔ LK100 ↔ MINI PRO</mark> (Fully Compatible)
* **\[NOT COMPATIBLE]**
* <mark style="color:red;">2541 ↔ Securedock</mark> (Legacy Compatibility Only)
  {% endhint %}

***

### 🛠️ Need Help?

If you encounter issues, please refer to these troubleshooting resources:

* [**Firmware Update Guide**](https://help.iodd.kr/troubleshooting/firmware-update)
* [**Disk Initialization Guide**](https://help.iodd.kr/disk-initialization)
* [**Error Messages Guide**](https://help.iodd.kr/troubleshooting/error-messages)
* [**FAQ**](https://help.iodd.kr/troubleshooting/faq)

#### Terminal Verification

You can check if your IODD is correctly recognized by the OS:

```bash
# On Linux, verify the connected USB mass storage device
$ lsblk -o NAME,MODEL,SIZE,FSTYPE
```

***

### 📞 Corporate Contact

* **Email**: **<webmaster@iodd.kr>** (Technical Support & Business Inquiries).

### 🛒 Official Stores

* [**USA Amazon**](https://www.amazon.com/iodd/)
* [**DE or EU Amazon**](https://www.amazon.de/stores/page/97735567-5F5C-428C-BF9E-B4DD4F040979)
* [**AliExpress (IODD Ewoda Store)**](https://www.aliexpress.com/store/1101231114)
  * Products(limited), Accessories, and Components.
  * **IODD Ewoda Store** is our official worldwide distributor.