iPad (1st) を4台集めて液晶を取り出し、こいつにぶら下げたい

4K@30hz 2x2 DVI HDMI Video Wall Controller Multi-screen Splicing Box 1080P@60hz 1x2 1x3 1x4 4x1 1 To 2 3 4 TV Splicer Processor
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