Backordered until June but available for purchase at the discounted price... Amazon with Deal Targets has the Kingston Canvas Select Plus 128GB 100MB/s Read A1 Class 10 UHS-I microSDXC Memory Card with Adapter (SDCS2/128GB) for $13 with free shipping on $25+ or with Prime.
Shell Shocker! Today only. Newegg has the Samsung Pro Endurance 128GB microSDXC UHS-I/U1 Memory Card with Adapter (MB-MJ128GA/AM) for $23 - $2 off with coupon code 93XQU65 [Exp 4/16] = $21 with free shipping.
Designed specifically for video monitoring cameras (dash cams, surveillance & security cams, CCTV, body cams, etc).
Up to 66% off PNY Data Storage. Today only. Amazon has the PNY Elite Performance 256GB High Speed Class 10 U3 SDXC Flash Memory Card (P-SDX256U395-GE) on sale for $32 with free shipping. Features up to 95MB/sec transfer speeds.