In a nutshell: Buffalo has introduced the RUF3-KEV a USB flash drive with a unique twist. This seemingly ordinary device is engineered to serve as the final line of defense against viral infections when transferring files between computers. At first glance, the RUF3-KEV looks like an ordinary USB stick. However, beneath its unassuming exterior lies Buffalo's proprietary "DiXiM Security Endpoint" an embedded anti-malware system that monitors files for threats in real-time. According to PC Watch, any rogue programs or virus signatures are instantly quarantined and neutralized before they can cause harm.The drive also includes a built-in antivirus scanner that scans new file transfers, detecting and removing infected payloads on the fly. An additional "heuristic" layer analyzes program behaviors, identifying and isolating anything that exhibits suspicious traits.For added security, the RUF3-KEV features password authentication, preventing unauthorized access to its data.The RUF3-KEV features a capless design to prevent dust infiltration, and its auto-retracting USB connector reduces wear and tear. Despite being a USB 3.2 Gen 1 flash drive, it boasts a compact stature, measuring approximately 19.8 x 10 x 68 mm.It's worth noting that USB 3.2 Gen 1 is far from the latest standard, as it has been surpassed by USB 3.2 Gen 2, USB 3.2 Gen 2x2, and USB4. Clearly, speed is not the primary focus of this device. // Related StoriesThe drive is available in 64GB, 32GB, and 16GB capacities. Pricing, announced in Japanese yen, starts at 10,000 ($64) for the 64GB version, 8,300 ($53) for the 32GB model, and 6,600 ($42) for the 16GB option.For now, the RUF3-KEV is only available via Amazon Japan, which may involve additional shipping costs. While Buffalo has a US subsidiary (Buffalo Americas), it remains unclear if the device will launch stateside.For users frequently transferring sensitive files between computers, the added peace of mind may justify the extra expense.Buffalo, best known for its LinkStation and TeraStation lines of network-attached storage devices that enable centralized data access across networks, also offers a range of portable drives and networking components.