8 serial ports can connect 8 hard disks: 250 yuan
4 interfaces can connect 4 hard disks: 190 yuan
So the price is different!
Hard disk video videos
Brand: Great Wall
Model: GW-M200HSDA
Supply: Factory inventory
Increase points can be issued.
(No power cord)
Size: 12.5 height 6.4 deep 10 cm
![](https://img.alicdn.com/imgextra/i1/1992253854/O1CN01LLdwAd1eLB1HLZs83_!!1992253854.jpg)