Amazon has the SanDisk Extreme Pro 256GB SDXC UHS-I Memory Card (SDSDXXD-256G-GN4IN, Dark gray/Black) for $30 with free shipping on $35+ or with Prime. List price: $62. Features up to 200MB/s read speeds, write speed up to 140MB/s. Has excellent Amazon Reviews.
Amazon has the SanDisk Extreme Pro 256GB SDXC UHS-I Memory Card (SDSDXXD-256G-GN4IN, Dark gray/Black) for $30 with free shipping on $35+ or with Prime. List price: $62. Features up to 200MB/s read speeds, write speed up to 140MB/s. Has excellent Amazon Reviews.
$30
Amazon has the Samsung T5 EVO 4TB Portable SSD (MU-PH4T0S/AM) for $213 with free shipping. Features USB 3.2 Gen 1, shock resistance and fall protection up to 6 feet, 256bit AES hardware encryption, up to 460MBps sequential read/write speeds.
Amazon has the Corsair MP600 Mini 2TB M.2 NVMe PCIe x4 Gen4 SSD for $140 with free shipping. Features fully compatible with Valve Steam Deck, ASUS ROG Ally, MSI Claw, Microsoft Surface, and more, up to 7,000MB/sec sequential read and up to 6,200MB/sec sequential write speeds.
Amazon has the Samsung Pro Plus 128GB MicroSDXC Card w/ Reader (MB-MD128SB/AM) for $18 with free shipping on $25+ or with Prime. Features read and write speeds of 180MB/s and 130 MB/s. Has excellent Amazon Reviews.
Amazon has the WD BLACK SN850X NVMe PCIe 4.0 8TB Internal Gaming SSD w/o Heatsink (WDS800T2X0E) for $649 - $70 off coupon (click checkbox) $579 with free shipping. Has excellent Amazon Reviews.