USB port for welding - Samsung 2.5 USB Mini-A 640GB G2 Portable External hard drive
SAMSUNG G2 640GB USB 2.0 2.5" Portable External Hard Drive HX-MU064DC/GB2 Black Desktop External Hard Drives - Newegg.com
Amazon.com: HDD 2.5 "1TB USB 3.0 SuperSpeed Red, GEN2, Green Button, Store 'n' Go External Hard Drive Verbatim : Electronics
Open Box: SAMSUNG 2TB P3 Portable External Hard Drive USB 3.0 Model STSHX-MTD20EF (HX-MTD20EF/G2) Portable External Hard Drives - Newegg.com
User manual Samsung G2 Portable (English - 35 pages)
User manual Samsung S2 Portable (English - 25 pages)
S Portable Series | Support Seagate US
Samsung G2 review: Samsung G2 - CNET
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