Lenovo E7450,LA-A961P Rev 1.0 working bios, 8MB $1.99 – Purchase Checkout Added to cart Your Recently Viewed Downloads Lenovo X1 Carbon 7th Gen – (Type 20R1, 20R2) Laptop (ThinkPad) – Type 20R1 ( N2QET40W ), 32MB Macbook Air A1375,820-2796-A working bios, 4MB