Sears offers the PNY 256GB Elite Performance UHS-I Class 10 Secure Digital Extended-Capacity Card, model no. P-SDX256U1H-GE, for $71.40 with free shipping. That's the lowest total price we could find by $45. It features max read speeds of 90MB/s.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.