❶ A specialized M.2 adapter allows modern PCs and laptops to emit the unique startup chime of the NEC PC-9800 series from the 80s. ❷ The device comes in two M.2 form factors, compatible with standard SSD and Wi-Fi slots, and includes a built-in speaker with adjustable volume. ❸ Currently available for purchase at Kadenken.com for approximately $19 USD, this niche product targets retro PC enthusiasts.