# Welcome to IODD Guide
## 😃 Welcome to IODD Guide
Experience the ultimate virtual drive and encryption solution.
IODD Series Comparison: Find the right model for your needs.
### 🔔 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:**
* ST400 ↔ LK100 ↔ MINI PRO (Fully Compatible)
* **\[NOT COMPATIBLE]**
* 2541 ↔ Securedock (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**: **** (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.
---
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