Western Digital 4TB black disk is slightly inferior to Hitachi The 4TB black disk that Western Digital announced today has begun distribution in various locations. The VR-Zone Taiwan sub-station got a piece of it, and it took the lead in actual testing, especially comparing Hitachi’s world’s first 4TB desktop hard drive.

Both the WD Black WD4001FAEX and the enterprise-class RE WD4000FYYZ are dual processor, 7200RPM speed, 64MB cache, SATA 6Gbps interface, the number of sectors are also 7814037168, the difference is that load / unload cycles, the former is 300,000, and then It has reached 600,000 times. In addition, there are SAS 6Gbps interfaces at the enterprise level.

As for the single-disc capacity, it has been confirmed that it is a single-disc 800GB and five-disc. It seems that the single-disc 1TB is still not mature enough.


We are a professional power adapter/ Switching Power Supply manufacturer, our power supplier passed UL,CE,FCC,ROHS,SAA,GS,CB,CCC,CEC.DOE VI certificates.

We offer Desktop Switching Power Supply, AC/DC Power Adapter for smart phone, laptop, tablet, LED display, electric tool, bluetooth speaker, robot cleaner, massage chair, humidifier, juice extractor, coffee machine, small household appliance, fingerprint scanner, CCTV camera-etc.

There are wide choice of sizes, looks, power capacity, input and output voltages to meet your specific requirements. Find the right switching power supply that fits your input voltage and amperage here.

48v 1.25a power supply48v 1.25a power adapter36v 2a transformer


Desktop Switching Power Supply

Desktop Power Adapter,Desktop Switching Power Adapter,Computer Power Adapter,Laptop Power Adapter

Shenzhen Juyuanhai Electronic Co., Ltd. , https://www.powersupplycn.com