$ dd if=/dev/sdb bs=512 | hexdump -C
Password:
00000000  eb 3c 90 4d 53 44 4f 53  35 2e 30 00 02 01 01 00  |.<.MSDOS5.0.....|
00000010  01 10 00 10 00 f8 01 00  01 00 01 00 00 00 00 00  |................|
00000020  00 00 00 00 80 00 29 34  12 00 00 54 69 6e 79 55  |......)4...TinyU|
00000030  53 42 20 4d 53 43 46 41  54 31 32 20 20 20 00 00  |SB MSCFAT12   ..|
00000040  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 55 aa  |..............U.|
00000200  f8 ff ff ff 0f 00 00 00  00 00 00 00 00 00 00 00  |................|
00000210  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000400  54 69 6e 79 55 53 42 20  4d 53 43 08 00 00 00 00  |TinyUSB MSC.....|
00000410  00 00 00 00 00 00 4f 6d  65 43 00 00 00 00 00 00  |......OmeC......|
00000420  52 45 41 44 4d 45 20 20  54 58 54 20 00 c6 52 6d  |README  TXT ..Rm|
00000430  65 43 65 43 00 00 88 6d  65 43 02 00 91 00 00 00  |eCeC...meC......|
00000440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000600  54 68 69 73 20 69 73 20  74 69 6e 79 75 73 62 27  |This is tinyusb'|
00000610  73 20 4d 61 73 73 53 74  6f 72 61 67 65 20 43 6c  |s MassStorage Cl|
00000620  61 73 73 20 64 65 6d 6f  2e 0d 0a 0d 0a 49 66 20  |ass demo.....If |
00000630  79 6f 75 20 66 69 6e 64  20 61 6e 79 20 62 75 67  |you find any bug|
00000640  73 20 6f 72 20 67 65 74  20 61 6e 79 20 71 75 65  |s or get any que|
00000650  73 74 69 6f 6e 73 2c 20  66 65 65 6c 20 66 72 65  |stions, feel fre|
00000660  65 20 74 6f 20 66 69 6c  65 20 61 6e 0d 0a 69 73  |e to file an..is|
00000670  73 75 65 20 61 74 20 67  69 74 68 75 62 2e 63 6f  |sue at github.co|
00000680  6d 2f 68 61 74 68 61 63  68 2f 74 69 6e 79 75 73  |m/hathach/tinyus|
00000690  62 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |b...............|
000006a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
16+0 records in
16+0 records out
8192 bytes (8.2 kB, 8.0 KiB) copied, 0.205778 s, 39.8 kB/s