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        首頁 > Support > Help desk > 正文
        
	
	
        
				
				
		
        
				
				
			
        Q: ES330/ES410/ES620 can connect how many Extension units?
        
			
        更新時間：2014-06-08點擊次數：2456次
        
			
			
			
					
			
        
				
        
	A:  It can connect at most 6 Extension units.