--- description: "IODD TRIM Tool is a universal Windows utility designed to improve SSD write speeds and lifespan for any external USB drive. It supports BOT, UASP, Full Device, and Free Space TRIM operations." --- # 🧹 IODD TRIM Tool **Platform**: Windows 10 / 11 (64-bit) **License**: Freeware ## 1. Overview The **IODD TRIM Tool** is a Windows-exclusive application designed to send TRIM commands to **external SSDs connected via a USB-SATA bridge**. While Windows automatically performs TRIM on internal SATA/NVMe SSDs, it often fails to do so for external USB SSDs. This tool resolves that issue, helping to maintain write performance, extend SSD lifespan, and ensure consistent response times. > **Universal Compatibility**: This tool is **not limited to IODD products**. It supports **all external USB SSDs** from any manufacturer, provided the USB bridge supports ATA Pass-Through or SCSI UNMAP. ## 2. Key Features * **3-Step TRIM Strategy**: Automatic fallback routing from `DSM TRIM` → `SCSI UNMAP` → `ATA Pass-Through` to ensure maximum compatibility. * **BOT/UASP Support**: Fully supports both Bulk-Only Transport (BOT) and USB Attached SCSI Protocol (UASP). * **Flexible TRIM Modes**: * **Full Device TRIM**: Completely wipes the SSD. *(Warning: ALL data will be permanently deleted!)* * **Free Space Only TRIM**: Performs TRIM only on empty space, keeping your existing files perfectly safe. * **Real Test & Speed Chart**: Verifies if TRIM is actually working by performing a file write/delete/verify sequence. It records write speeds at 2-second intervals and plots them on a time-series chart. * **Drive Inspection**: Provides detailed information on disk partitions, volumes, cluster sizes, and free space fragmentation. * **Multilingual Support**: Supports 8 languages (English, Korean, Japanese, Chinese, Spanish, German, French, Russian). ## 3. System Requirements * **OS**: Windows 10 / 11 (64-bit) * **Privileges**: **Administrator privileges required** (Crucial for sending SCSI Pass-Through commands directly to the disk). * **Connection**: Any SSD connected via a USB-SATA bridge. ## 4. VirusTotal Scan Result All official releases are scanned with VirusTotal to ensure they are free of malware. You can verify the file hashes and scan reports using the links below. | Version | File Name | Scan Date | Detection | SHA-256 Hash | | :--- | :--- | :--- | :--- | :--- | | **v0.2.0.8** | `iodd_trim_tool-0.2.0.8.zip` | 2026-04-28 | ✅ `0/66` | [`d925d5...27ba4a`](https://www.virustotal.com/gui/file/d925d54aeef68949941caa9ae9079dd8f1438449f22260a4d95f52b00727ba4a) | | **v0.2.0.6** | `iodd_trim_tool-0.2.0.6.zip` | 2026-03-21 | ✅ `0/69` | [`30af83...fb35f0`](https://www.virustotal.com/gui/file/30af8305e261ce98edf7b05f3cf166058e8b6e5716366beecf49ba6a45fb35f0) | | **v0.2.0.4** | `iodd_trim_tool-0.2.0.4.zip` | 2026-03-10 | ✅ `0/67` | [`07ecb1...cae191`](https://www.virustotal.com/gui/file/07ecb130c7725c2706ec7c8ad722908273360197417c97c843086ac2bacae191) | > **Note:** Click the abbreviated SHA-256 hash link to view the full detailed report on VirusTotal. ## 5. Contact & Support If you have any questions, encounter issues, or need further assistance with the IODD TRIM Tool, please reach out to: * **Email**: [kbs@iodd.kr](mailto:kbs@iodd.kr)