All in one : http://gsm4free.com/ipsw
IPHONE

9.2.1 (4S):iPhone4,1_9.2.1_13D15_Restore.ipsw
9.2.1 (5 GSM):iPhone5,1_9.2.1_13D15_Restore.ipsw
9.2.1 (5 GSM+CDMA):iPhone5,2_9.2.1_13D15_Restore.ipsw
9.2.1 (5s GSM): iPhone6,1_9.2.1_13D15_Restore.ipsw
9.2.1 (5s GSM+CDMA): iPhone6,2_9.2.1_13D15_Restore.ipsw
9.2.1 (5c GSM): iPhone5,3_9.2.1_13D15_Restore.ipsw
9.2.1 (5c GSM+CDMA): iPhone5,4_9.2.1_13D15_Restore.ipsw
9.2.1 (6+): iPhone7,1_9.2.1_13D15_Restore.ipsw
9.2.1 (6): iPhone7,2_9.2.1_13D15_Restore.ipsw
9.2.1 (6s): iPhone8,1_9.2.1_13D15_Restore.ipsw
9.2.1 (6s+): iPhone8,2_9.2.1_13D15_Restore.ipsw

IPAD

9.2.1 (iPad 2 Wi-Fi):iPad2,1_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad 2 GSM):iPad2,2_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad 2 CDMA): iPad2,3_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad 2 New): iPad2,4_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad 3 Wi-Fi): iPad3,1_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad 3 CDMA): iPad3,2_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad 3 GSM): iPad3,3_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Mini Wi-Fi): iPad2,5_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Mini GSM): iPad2,6_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Mini CDMA): iPad2,7_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad 4 Wi-Fi): iPad3,4_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad 4 GSM): iPad3,5_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad 4 GSM_CDMA): iPad3,6_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Air Wi-Fi): iPad4,1_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Air Cellular): iPad4,2_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Mini 2 Wi-Fi): iPad4,4_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Mini 2 Cellular): iPad4,5_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Air China): iPad4,3_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Mini 2 China): iPad4,6_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Mini 3 Wi-Fi): iPad4,7_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Mini 3 Cellular): iPad4,8_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Mini 3 China): iPad4,9_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Air 2 Wi-Fi): iPad5,3_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Air 2 Cellular): iPad5,4_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Mini 4 Wi-Fi): iPad5,1_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Mini 4 Cellular): iPad5,2_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Pro Wi-Fi): iPad6,7_9.2.1_13D15_Restore.ipsw
9.2.1 (iPad Pro Cellular): iPad6,8_9.2.1_13D15_Restore.ipsw

IPOD

9.2.1 (5G):iPod5,1_9.2.1_13D15_Restore.ipsw
9.2.1 (6G):iPod7,1_9.2.1_13D15_Restore.ipsw