Amazon has the SanDisk 128GB Ultra Fit USB 3.1 Flash Drive (Black, SDCZ430-128G-G46) for $23 with free shipping on $25+ or with Prime. List price: $48. Has good Amazon Reviews.
Amazon has the SanDisk Ultra 256GB microSDXC UHS-I Memory Card with Adapter (SDSQUAR-256G-GN6MA) for $49 with free shipping. Ideal for Android-based smartphones and tablets. Has excellent Amazon Reviews.
eBay has the HP EX900 500GB PCIe NVMe M.2 SSD (2YY44AA#ABC) for $73 with free shipping. Has average Amazon Reviews.
Amazon has the Inland Professional 480GB 3D TLC NAND SATA III 6Gb/s 2.5" Internal Solid State Drive for $50 with free shipping. Micro Center sells it for $50 with free shipping.
Amazon has the Inland Professional 2.5" 3D NAND SSD 240GB (349365) for $30 with free shipping. Read/Write Speed up to 550MB/s and 490MB/s respectively. Has good Amazon Reviews.
Amazon has the SanDisk Ultra 400GB Micro SDXC UHS-I Card with Adapter (SDSQUAR-400G-GN6MA) for $86 with free shipping. Features up to 400GB to store even more hours of Full HD video7, class 10 for Full HD video recording and playback2, up to 100MB/s transfer speeds let you move up to 1200 photos in a minute6.
Has excellent Amazon Reviews.
Amazon has the Silicon Power A55 M.2 2280 256GB SATA III Internal Solid State Drive (SU256GBSS3A55M28AB) for $38 with free shipping. Has excellent Amazon Reviews.
Amazon has the SanDisk 500GB SATA 6Gbps 2.5" Internal (SSD SDSSDH3-500G-G25) for $73 with free shipping. List price: $200. Accelerate your PC for faster boot?up and blazing?fast gaming and graphics. It features data transfer rates up to 560MB/sec., shock resistant.
Has excellent Amazon Reviews.
For Prime members only, Amazon has the 64GB Samsung Pro Endurance U1 microSDXC Memory Card (MB-MJ64GA/AM) for $20 with free shipping. Features up to 26,280 hours of 4K and Full HD (1080p) recording and playback.