DotStone 4x1 HDMI Switch w/ PiP, 4K and 3D Support $19 at Amazon
Amazon with HTR007 has the DotStone 4x1 HDMI Switch with PiP, 4K and 3D Support for $27 - $8 off with coupon code
XPELK232 at final checkout =
$19 with free shipping on $25+ or with Prime.
Supports Picture-in-Picture with up to 3 sub-screen and 1 main-screen displays, and up to 4kx2K@30HZ or 1080P@60HZ.
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