The 4 bay ts 431u offers the optimal priceperformance in a compact 1u chassis network storage server for file sharing backup synchronization remote access and more powered by an advanced armreg cortexreg a9 dual core processor and 1gb ram the ts 431u delivers outstanding multitasking performance as a business nas featuring four usb 30 and dual gigabit lan ports while maintaining low power consumption for 247 always on usage see how the ts 431u can enhance your working productivity