Chinese manufacturer Biwin has introduced a mini SSD that may replace traditional microSD cards in handheld PCs. The mini SSD is slightly larger than a standard SD card and offers storage capacities from 512GB to 2TB. It will first be supported by OneXPlayer handhelds, adhering to PCIe 4.0 and NVMe 1.4 standards, with read and write speeds of up to 3,718MB/s and 3,415MB/s, respectively. This performance exceeds that of microSD Express cards and typical microSD cards, which max out at 950MB/s and 240MB/s, respectively. The mini SSD measures 0.59 x 0.66 x 0.05 inches (15 x 17 x 1.4mm), making it more portable than M.2 2230 drives. Biwin plans to bundle the mini SSD with select OneXPlayer devices, pricing the 512GB model at approximately 399 CNY and the 1TB model at around 599 CNY, while the 2TB pricing is unconfirmed. The success of the mini SSD will depend on broader adoption by manufacturers beyond niche handhelds.