目前 9 系列公版上已知 NGFF (Next Generation Form Factor, M.2) 插槽有兩個：
A. Socket type 2 for WLAN, BT, WIGIG (Wireless Gigabit Alliance)
整合 1 組 eDP (Embedded DisplayPort) 供 WIDI (Wireless Display) 使用
2 組 PCIe x 1 (WLAN & WIGIG 各用一組)
1 組 NFC (Near Field Communication) 保留線路
B. Socket type 3 for SSD
提供 1 組 PCIe x 4 其中線路可與 SATA Express 或 SATA 共用
目前已知的 M.2 WLAN (Intel Wireless-AC 3160) 卡有 KeyA(防呆) & KeyE(遮斷 WIDI)
未來應該會推出支援 WIDI 的 WIGIG 卡吧 (笑
目前的 M.2 SSD 是透過 KeyB 來遮斷支援 PCIe x 4 (卡王 Samsung XP941 就是x4)，
當 M.2 SSD 有 KeyB 時只有四種使用案例：
1. SATA
2. SATA Express
3. PCIe x 1
4. PCIe x 2
這接頭真是泛用啊 (笑
附帶一提：CPU 一共提供三組 DDI (Digital Display Interface)，
1. Port B: 拿去做 HDMI 實體接頭
2. Port C: 拿去做 Thunderbolt (mini DisplayPort)
3. Port D: 拿去做 WIDI eDP (Embedded DisplayPort)
[問卦]有沒有一切都是剛剛好的卦？
附註：M.2 Socket type 2 & 3 接腳定義圖
GND 1
USB_BT_DP 3 2 V_3P3
USB_BT_DN 5 4 V_3P3
GND 7 6 WLAN_LED
9 NOTCH_A 8
11 NOTCH_A 10
13 NOTCH_A 12
15 NOTCH_A 14
TP_MLDIR 17 16 WPAN_LED
EDP_D_TX3_DN 19 18 GND
EDP_D_TX3_DP 21 20 EMB_AUXN
KEYA_GND_KEYE_SDIO_RST 23 22 EMB_AUXP
EDP_D_TX2_DN 25 NOTCH_E 24 GND
EDP_D_TX2_DP 27 NOTCH_E 26 EDP_D_TX1_DN
GND 29 NOTCH_E 28 EDP_D_TX1_DP
EMB_HPD 31 NOTCH_E 30 GND
GND 33 32 EDP_D_TX0_DN
PCIE_TX_WLAN_DP 35 34 EDP_D_TX0_DP
PCIE_TX_WLAN_DN 37 36 KEYA_GND_KEYE_UART_RTS
GND 39 38 CLINK_RST_LAN_N
PCIE_RX_WLAN_DP 41 40 CLINK_DATA_LAN
PCIE_RX_WLAN_DN 43 42 CLINK_CLK_LAN
GND 45 44 TP_COEX3
CLK_WLAN_DP 47 46 TP_COEX2
CLK_WLAN_DN 49 48 TP_COEX1
GND 51 50 PCH_SUSCLK
CLKREQ_WLAN 53 52 WLAN_RST
WAKE_N_WLAN 55 54 GP15_BT_RF_KILL
GND 57 56 GP44_WLAN_DISABLE
PCIE_TX_WIGIG_DP 59 58 TP_NFC_SM_DATA
PCIE_TX_WIGIG_DN 61 60 TP_NFC_SM_CLK
GND 63 62 TP_NFC_IRQ
PCIE_RX_WIGIG_DP 65 64 TP_NFC_RST
PCIE_RX_WIGIG_DN 67 66 WIGIG_RST
GND 69 68 CLKREQ_WIGIG
CLK_WIGIG_DP 71 70 WAKE_N_WIGIG
CLK_WIGIG_DN 73 72 V_3P3
GND 75 74 V_3P3
GND 1
GND 3 2 V_3P3
PCIE_L3_RX_DN 5 4 V_3P3
PCIE_L3_RX_DP 7 6
GND 9 8
PCIE_L3_TX_DN 11 10 SSD_DAS_NDSS
PCIE_L3_TX_DP 13 NOTCH_B 12 V_3P3
GND 15 NOTCH_B 14 V_3P3
PCIE_L2_RX_DN 17 NOTCH_B 16 V_3P3
PCIE_L2_RX_DP 19 NOTCH_B 18 V_3P3
GND 21 20
PCIE_L2_TX_DN 23 22
PCIE_L2_TX_DP 25 24
GND 27 26
SATA_PCIE_L1_RX_DN 29 28
SATA_PCIE_L1_RX_DP 31 30
GND 33 32
SATA_PCIE_L1_TX_DN 35 34
SATA_PCIE_L1_TX_DP 37 36
GND 39 38 SSD_SATA_DEVSLP
SATA_PCIE_L0_RX_DP 41 40
SATA_PCIE_L0_RX_DN 43 42
GND 45 44
SATA_PCIE_L0_TX_DN 47 46
SATA_PCIE_L0_TX_DP 49 48
GND 51 50 SATA_PERST
CLK_SSD_DN 53 52 CLKREQ_SSD
CLK_SSD_DP 55 54 WAKE_N_SSD
GND 57 56
58
59 NOTCH_M 60
61 NOTCH_M 62
63 NOTCH_M 64
65 NOTCH_M 66
67 68 SSD_M2_SUSCLK
SSD_IFDET 69 70 V_3P3
GND 71 72 V_3P3
GND 73 74 V_3P3
GND 75
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A. Socket type 2 for WLAN, BT, WIGIG (Wireless Gigabit Alliance)
整合 1 組 eDP (Embedded DisplayPort) 供 WIDI (Wireless Display) 使用
2 組 PCIe x 1 (WLAN & WIGIG 各用一組)
1 組 NFC (Near Field Communication) 保留線路
B. Socket type 3 for SSD
提供 1 組 PCIe x 4 其中線路可與 SATA Express 或 SATA 共用
目前已知的 M.2 WLAN (Intel Wireless-AC 3160) 卡有 KeyA(防呆) & KeyE(遮斷 WIDI)
未來應該會推出支援 WIDI 的 WIGIG 卡吧 (笑
目前的 M.2 SSD 是透過 KeyB 來遮斷支援 PCIe x 4 (卡王 Samsung XP941 就是x4)，
當 M.2 SSD 有 KeyB 時只有四種使用案例：
1. SATA
2. SATA Express
3. PCIe x 1
4. PCIe x 2
這接頭真是泛用啊 (笑
附帶一提：CPU 一共提供三組 DDI (Digital Display Interface)，
1. Port B: 拿去做 HDMI 實體接頭
2. Port C: 拿去做 Thunderbolt (mini DisplayPort)
3. Port D: 拿去做 WIDI eDP (Embedded DisplayPort)
[問卦]有沒有一切都是剛剛好的卦？
附註：M.2 Socket type 2 & 3 接腳定義圖
GND 1
USB_BT_DP 3 2 V_3P3
USB_BT_DN 5 4 V_3P3
GND 7 6 WLAN_LED
9 NOTCH_A 8
11 NOTCH_A 10
13 NOTCH_A 12
15 NOTCH_A 14
TP_MLDIR 17 16 WPAN_LED
EDP_D_TX3_DN 19 18 GND
EDP_D_TX3_DP 21 20 EMB_AUXN
KEYA_GND_KEYE_SDIO_RST 23 22 EMB_AUXP
EDP_D_TX2_DN 25 NOTCH_E 24 GND
EDP_D_TX2_DP 27 NOTCH_E 26 EDP_D_TX1_DN
GND 29 NOTCH_E 28 EDP_D_TX1_DP
EMB_HPD 31 NOTCH_E 30 GND
GND 33 32 EDP_D_TX0_DN
PCIE_TX_WLAN_DP 35 34 EDP_D_TX0_DP
PCIE_TX_WLAN_DN 37 36 KEYA_GND_KEYE_UART_RTS
GND 39 38 CLINK_RST_LAN_N
PCIE_RX_WLAN_DP 41 40 CLINK_DATA_LAN
PCIE_RX_WLAN_DN 43 42 CLINK_CLK_LAN
GND 45 44 TP_COEX3
CLK_WLAN_DP 47 46 TP_COEX2
CLK_WLAN_DN 49 48 TP_COEX1
GND 51 50 PCH_SUSCLK
CLKREQ_WLAN 53 52 WLAN_RST
WAKE_N_WLAN 55 54 GP15_BT_RF_KILL
GND 57 56 GP44_WLAN_DISABLE
PCIE_TX_WIGIG_DP 59 58 TP_NFC_SM_DATA
PCIE_TX_WIGIG_DN 61 60 TP_NFC_SM_CLK
GND 63 62 TP_NFC_IRQ
PCIE_RX_WIGIG_DP 65 64 TP_NFC_RST
PCIE_RX_WIGIG_DN 67 66 WIGIG_RST
GND 69 68 CLKREQ_WIGIG
CLK_WIGIG_DP 71 70 WAKE_N_WIGIG
CLK_WIGIG_DN 73 72 V_3P3
GND 75 74 V_3P3
GND 1
GND 3 2 V_3P3
PCIE_L3_RX_DN 5 4 V_3P3
PCIE_L3_RX_DP 7 6
GND 9 8
PCIE_L3_TX_DN 11 10 SSD_DAS_NDSS
PCIE_L3_TX_DP 13 NOTCH_B 12 V_3P3
GND 15 NOTCH_B 14 V_3P3
PCIE_L2_RX_DN 17 NOTCH_B 16 V_3P3
PCIE_L2_RX_DP 19 NOTCH_B 18 V_3P3
GND 21 20
PCIE_L2_TX_DN 23 22
PCIE_L2_TX_DP 25 24
GND 27 26
SATA_PCIE_L1_RX_DN 29 28
SATA_PCIE_L1_RX_DP 31 30
GND 33 32
SATA_PCIE_L1_TX_DN 35 34
SATA_PCIE_L1_TX_DP 37 36
GND 39 38 SSD_SATA_DEVSLP
SATA_PCIE_L0_RX_DP 41 40
SATA_PCIE_L0_RX_DN 43 42
GND 45 44
SATA_PCIE_L0_TX_DN 47 46
SATA_PCIE_L0_TX_DP 49 48
GND 51 50 SATA_PERST
CLK_SSD_DN 53 52 CLKREQ_SSD
CLK_SSD_DP 55 54 WAKE_N_SSD
GND 57 56
58
59 NOTCH_M 60
61 NOTCH_M 62
63 NOTCH_M 64
65 NOTCH_M 66
67 68 SSD_M2_SUSCLK
SSD_IFDET 69 70 V_3P3
GND 71 72 V_3P3
GND 73 74 V_3P3
GND 75
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