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ESS Modems — drivers
ESS ES2838/ES2839 SuperLink-M ES56H-PI (ES56STH-PI)
ESS ES2898/ES2828 ES56T-PI (ES56-PI/ES56V-PI)
ESS Modems Windows drivers will help to adjust your device and correct errors. Free drivers for ESS Modems are taken from manufacturers' official websites.
Install DriverHub utility and solve all driver problems.