libnvme(9)

💅 libnvme(9) — API Manual ✨

okay bestie, so this page is literally the whole vibe check for enum nvme_mi_form_factor — the Upstream Connector Element Descriptor Form Factor (FF) values. It's giving "catalog of every shape a drive can be" 🎀 and honestly there are so many of them. Grab a snack, we're going through all of them, no skips. 🍓

---

🌸 NAME 🌸

enum nvme_mi_form_factor — Upstream Connector Element Descriptor — Form Factor (FF) values. That's the whole name, periodt. 💅

---

✨ SYNOPSIS ✨

enum nvme_mi_form_factor {
    NVME_MI_FF_UNKNOWN ,
    NVME_MI_FF_PCIE_INTEGRATED ,
    NVME_MI_FF_PCIE_OTHER ,
    NVME_MI_FF_PCIE_2_5_UNKNOWN ,
    NVME_MI_FF_PCIE_2_5_U2_15MM ,
    NVME_MI_FF_PCIE_2_5_U2_7MM ,
    NVME_MI_FF_PCIE_2_5_SFF_TA_1001_15MM ,
    NVME_MI_FF_PCIE_2_5_SFF_TA_1001_7MM ,
    NVME_MI_FF_PCIE_CEM_UNKNOWN ,
    NVME_MI_FF_PCIE_CEM_HHHL ,
    NVME_MI_FF_PCIE_CEM_FHHL ,
    NVME_MI_FF_PCIE_CEM_FHFL ,
    NVME_MI_FF_PCIE_M2_UNKNOWN ,
    NVME_MI_FF_PCIE_M2_2230 ,
    NVME_MI_FF_PCIE_M2_2242 ,
    NVME_MI_FF_PCIE_M2_2260 ,
    NVME_MI_FF_PCIE_M2_2280 ,
    NVME_MI_FF_PCIE_M2_22110 ,
    NVME_MI_FF_PCIE_BGA_UNKNOWN ,
    NVME_MI_FF_PCIE_BGA_M2_1620 ,
    NVME_MI_FF_PCIE_BGA_M2_1113 ,
    NVME_MI_FF_PCIE_EDSFF_UNKNOWN ,
    NVME_MI_FF_PCIE_E1S_5_9MM ,
    NVME_MI_FF_PCIE_E1S_8MM ,
    NVME_MI_FF_PCIE_E1L_9_5MM ,
    NVME_MI_FF_PCIE_E1L_18MM ,
    NVME_MI_FF_PCIE_E3S_7_5MM ,
    NVME_MI_FF_PCIE_E3S_16_8MM ,
    NVME_MI_FF_PCIE_E3L_7_5MM ,
    NVME_MI_FF_PCIE_E3L_16_8MM ,
    NVME_MI_FF_PCIE_E1S_9_5MM ,
    NVME_MI_FF_PCIE_E1S_15MM ,
    NVME_MI_FF_PCIE_E1S_25MM ,
    NVME_MI_FF_PCIE_E2_9_5MM ,
    NVME_MI_FF_ETHERNET_UNKNOWN ,
    NVME_MI_FF_ETHERNET_2_5_15MM ,
    NVME_MI_FF_ETHERNET_2_5_7MM ,
    NVME_MI_FF_ETHERNET_E3S_7_5MM ,
    NVME_MI_FF_ETHERNET_E3S_16_8MM

};

---

🦋 CONSTANTS 🦋

Here's the full roster, bestie. Every single one, in order, with zero cut corners 👑:

🌈 The lonely "we don't know" one

• NVME_MI_FF_UNKNOWN — Unspecified: Other — unknown 🫠

💜 PCIe — integrated energy

• NVME_MI_FF_PCIE_INTEGRATED — PCIe: Integrated
• NVME_MI_FF_PCIE_OTHER — PCIe: Other — unknown 💀

🎀 PCIe — 2.5" Form Factor era

• NVME_MI_FF_PCIE_2_5_UNKNOWN — PCIe: 2.5" Form Factor — unknown
• NVME_MI_FF_PCIE_2_5_U2_15MM — PCIe: 2.5" Form Factor — PCI Express SFF-8639 Module (U.2) 15 mm
• NVME_MI_FF_PCIE_2_5_U2_7MM — PCIe: 2.5" Form Factor — PCI Express SFF-8639 Module (U.2) 7 mm
• NVME_MI_FF_PCIE_2_5_SFF_TA_1001_15MM — PCIe: 2.5" Form Factor — (SFF-TA-1001) 15 mm
• NVME_MI_FF_PCIE_2_5_SFF_TA_1001_7MM — PCIe: 2.5" Form Factor — (SFF-TA-1001) 7 mm

🔥 PCIe — CEM add-in card girlies

• NVME_MI_FF_PCIE_CEM_UNKNOWN — PCIe: CEM add in card — unknown
• NVME_MI_FF_PCIE_CEM_HHHL — PCIe: CEM add in card — Low Profile (HHHL)
• NVME_MI_FF_PCIE_CEM_FHHL — PCIe: CEM add in card — Standard Height Half Length (FHHL)
• NVME_MI_FF_PCIE_CEM_FHFL — PCIe: CEM add in card — Standard Height Full Length (FHFL)

🌸 PCIe — M.2 modules (the tiny icons)

• NVME_MI_FF_PCIE_M2_UNKNOWN — PCIe: M.2 module — unknown
• NVME_MI_FF_PCIE_M2_2230 — PCIe: M.2 module — 2230
• NVME_MI_FF_PCIE_M2_2242 — PCIe: M.2 module — 2242
• NVME_MI_FF_PCIE_M2_2260 — PCIe: M.2 module — 2260
• NVME_MI_FF_PCIE_M2_2280 — PCIe: M.2 module — 2280
• NVME_MI_FF_PCIE_M2_22110 — PCIe: M.2 module — 22110

🧚 PCIe — BGA SSD

• NVME_MI_FF_PCIE_BGA_UNKNOWN — PCIe: BGA SSD — unknown
• NVME_MI_FF_PCIE_BGA_M2_1620 — PCIe: BGA SSD — 16 x 20 mm (M.2 Type 1620)
• NVME_MI_FF_PCIE_BGA_M2_1113 — PCIe: BGA SSD — 11.5 x 13 mm (M.2 Type 1113)

⭐ PCIe — Enterprise & Datacenter SSD Form Factor (EDSFF supremacy)

• NVME_MI_FF_PCIE_EDSFF_UNKNOWN — PCIe: Enterprise & Datacenter SSD Form Factor — unknown
• NVME_MI_FF_PCIE_E1S_5_9MM — PCIe: E1.S — (SFF-TA-1006) 5.9 mm
• NVME_MI_FF_PCIE_E1S_8MM — PCIe: E1.S — (SFF-TA-1006) 8 mm
• NVME_MI_FF_PCIE_E1L_9_5MM — PCIe: E1.L — (SFF-TA-1007) 9.5 mm
• NVME_MI_FF_PCIE_E1L_18MM — PCIe: E1.L — (SFF-TA-1007) 18 mm
• NVME_MI_FF_PCIE_E3S_7_5MM — PCIe: E3.S — (SFF-TA-1008) 7.5 mm
• NVME_MI_FF_PCIE_E3S_16_8MM — PCIe: E3.S — (SFF-TA-1008) 16.8 mm
• NVME_MI_FF_PCIE_E3L_7_5MM — PCIe: E3.L — (SFF-TA-1008) 7.5 mm
• NVME_MI_FF_PCIE_E3L_16_8MM — PCIe: E3.L — (SFF-TA-1008) 16.8 mm
• NVME_MI_FF_PCIE_E1S_9_5MM — PCIe: E1.S — (SFF-TA-1006) 9.5 mm
• NVME_MI_FF_PCIE_E1S_15MM — PCIe: E1.S — (SFF-TA-1006) 15 mm
• NVME_MI_FF_PCIE_E1S_25MM — PCIe: E1.S — (SFF-TA-1006) 25 mm
• NVME_MI_FF_PCIE_E2_9_5MM — PCIe: E2 — (SFF-TA-1042) 9.5 mm

🐚 Ethernet — yes, drives with Ethernet, we love to see it

• NVME_MI_FF_ETHERNET_UNKNOWN — Ethernet: Other — unknown
• NVME_MI_FF_ETHERNET_2_5_15MM — Ethernet: 2.5" Form Factor (Native NVMe-oF Drive) 15 mm
• NVME_MI_FF_ETHERNET_2_5_7MM — Ethernet: 2.5" Form Factor (Native NVMe-oF Drive) 7 mm
• NVME_MI_FF_ETHERNET_E3S_7_5MM — Ethernet: E3.S (Native NVMe-oF Drive) 7.5 mm
• NVME_MI_FF_ETHERNET_E3S_16_8MM — Ethernet: E3.S (Native NVMe-oF Drive) 16.8 mm

---

ngl bestie, if you ever need to name a form factor and you're blanking, NVME_MI_FF_UNKNOWN is right there and it's not a crime 🙈

---

and that's the whole page!! every constant, every millimetre, every SFF-TA number, all present and accounted for 💖

so this absolute icon of a manpage is from October 2026, it's enum nvme_mi_form_factor, and it lives in libnvme(9). go forth and identify your connectors, main character 🫶✨👑