Collection: BIWIN Flash Memory Cards

BIWIN makes decent budget cards, but you need to check the write speeds before buying. The MS100 range tops out at 50MB/s write, which is fine for dashcams and phones but will bottleneck continuous 4K recording. If you need serious throughput, the ME300 pushes 900MB/s read and 700MB/s write, though it requires a microSD Express slot most devices still lack. For everyday use, the MS100 line offers solid value across 32GB, 64GB, 128GB and 256GB capacities. Pair one with a memory card reader for quick file transfers, or browse our USB flash drives and BIWIN solid state drives for larger storage needs.