{
  "system": "6U Tri-Mode Storage Array & OpenBMC",
  "version": "2.2.0",
  "currency": "USD",
  "parts": [
    {
      "id": "ext-2020",
      "name": "2020 Aluminum Extrusion Skeleton Kit (6.3m)",
      "category": "Mechanical",
      "mpn": "20-2020-KIT",
      "vendor": "80/20 Inc. (Indiana)",
      "cost": 14.00,
      "origin": "USA",
      "cad_file": "mechanical/01_2020_Extrusion_Skeleton_Blueprint.md",
      "desc": "18x Precision-cut 6063-T6 aluminum T-slot rails with 5.0mm center tap for M5 bolts.",
      "specs": "6063-T6 Aluminum | 20x20mm Profile | Clear Anodized"
    },
    {
      "id": "scs-top",
      "name": "SendCutSend 5052-H32 Aluminum Top/Bottom Panels",
      "category": "Sheet Metal",
      "mpn": "SMP-01-TOP",
      "vendor": "SendCutSend (NV/KY)",
      "cost": 26.80,
      "origin": "USA",
      "cad_file": "mechanical/dxf/top_bottom_panel.dxf",
      "desc": "1.27mm bend-free laser cut skins with countersunk M4 mounting perimeter.",
      "specs": "5052-H32 Aluminum | 1.27mm (0.050\") | Deburred & Anodized"
    },
    {
      "id": "scs-ears",
      "name": "6U Heavy-Duty EIA-310-D Rack Mounting Ears (Pair)",
      "category": "Sheet Metal",
      "mpn": "SMP-06L/R",
      "vendor": "SendCutSend (NV/KY)",
      "cost": 6.50,
      "origin": "USA",
      "cad_file": "mechanical/dxf/6u_rack_ear_left.dxf",
      "desc": "3.0mm 5052-H32 structural rack ears with 465.1mm center-to-center standard spacing.",
      "specs": "3.00mm Structural Aluminum | EIA-310-D Standard Holes"
    },
    {
      "id": "facade-quad",
      "name": "Modular 3D-Printed Dovetail Facade (Quadrant)",
      "category": "3D Print",
      "mpn": "FACADE-Q1-Q4",
      "vendor": "Local Print Hub (PETG/ASA)",
      "cost": 8.50,
      "origin": "Local Hub",
      "cad_file": "mechanical/scad/facade_quadrant.scad",
      "desc": "60° Interlocking wedge dovetail facade with honeycomb intake and LED light pipes.",
      "specs": "PETG/ASA Polymer | 0.2mm Layer Height | 4-Wall Perimeters"
    },
    {
      "id": "caddy-u3",
      "name": "Toolless U.3 / 3.5\" Dual-Mode Drive Sled",
      "category": "3D Print",
      "mpn": "CADDY-U3-V2",
      "vendor": "Local Print Hub (PETG)",
      "cost": 1.20,
      "origin": "Local Hub",
      "cad_file": "mechanical/scad/drive_caddy_u3.scad",
      "desc": "Dual-mode caddy with silicone vibration isolation grommets and flexible cam latch.",
      "specs": "Toolless Snap Cam | Silicone Grommets | 15mm U.3 & 3.5\" Support"
    },
    {
      "id": "fan-shroud",
      "name": "3x 120mm Bellmouth Pressure Shroud",
      "category": "3D Print",
      "mpn": "FAN-SHROUD-120",
      "vendor": "Local Print Hub (PETG)",
      "cost": 4.20,
      "origin": "Local Hub",
      "cad_file": "mechanical/scad/fan_wall_shroud.scad",
      "desc": "Aerodynamic duct with continuous R=5.0mm radiused intake fillets (+14.2% CFM).",
      "specs": "R=5.0mm Radiused Fillet | EPDM Gasket Channel | Acoustic Damper"
    },
    {
      "id": "fan-noctua",
      "name": "Noctua NF-F12 industrialPPC-3000 PWM Fan",
      "category": "Mechanical",
      "mpn": "NF-F12-iPPC-3000",
      "vendor": "Noctua USA / DigiKey",
      "cost": 16.00,
      "origin": "Austria/USA",
      "cad_file": "mechanical/scad/fan_wall_shroud.scad",
      "desc": "120mm 12V 3,000 RPM high-static-pressure (7.63 mm H2O) industrial cooling fan.",
      "specs": "3,000 RPM Max | 186.7 m³/h | 7.63 mm H2O | SSO2 Bearing"
    },
    {
      "id": "mcio-cable",
      "name": "SFF-TA-1016 (MCIO 8i) to U.3 Twinax Cable Harness",
      "category": "Cabling",
      "mpn": "DRWC-013702",
      "vendor": "JPC Connectivity / Amphenol",
      "cost": 12.00,
      "origin": "Taiwan/USA",
      "cad_file": "electrical/netlists/master_interconnect.net",
      "desc": "30AWG Silver-Plated Twinax ribbon with -0.25 dB/in insertion loss for pristine 16Gbps.",
      "specs": "30AWG Silver Twinax | 74-Pin SFF-TA-1016 | 85Ω / 100Ω SerDes"
    },
    {
      "id": "radxa-cm3",
      "name": "Radxa Compute Module 3I SoM (RK3568, 4G/16G)",
      "category": "Silicon",
      "mpn": "CM3I-4G16G",
      "vendor": "Ameridroid / RS Components",
      "cost": 38.00,
      "origin": "Taiwan (TSMC)",
      "cad_file": "electrical/kicad/carrier_baseboard.kicad_pro",
      "desc": "Quad-core Cortex-A55 @ 2.0GHz, 4GB LPDDR4, 16GB eMMC, PCIe 3.0 x2 root complex.",
      "specs": "Quad Cortex-A55 @ 2.0GHz | 4GB LPDDR4 | 16GB eMMC | 1.0 TOPS NPU"
    },
    {
      "id": "broadcom-ioc",
      "name": "Broadcom SAS3408 Tri-Mode Storage IOC",
      "category": "Silicon",
      "mpn": "SAS3408-BGA484",
      "vendor": "Avnet / Arrow Electronics",
      "cost": 32.00,
      "origin": "USA/Taiwan",
      "cad_file": "electrical/kicad/carrier_baseboard.kicad_pro",
      "desc": "8-PHY Fusion-MPT storage processor supporting NVMe U.3, SAS 12G, and SATA 6G.",
      "specs": "8-PHY SerDes | >1M IOPS | Dual Cortex-A15 | BGA-484 (27x27mm)"
    },
    {
      "id": "rp2040-mcu",
      "name": "Raspberry Pi RP2040 Dual Cortex-M0+ MCU",
      "category": "Silicon",
      "mpn": "RP2040-QFN56",
      "vendor": "DigiKey / Mouser",
      "cost": 0.95,
      "origin": "UK/Taiwan",
      "cad_file": "firmware/src/main.rs",
      "desc": "Auxiliary OpenBMC running Embassy-RP Rust: sub-µs PLP interrupt & 25kHz fan PWM.",
      "specs": "Dual Cortex-M0+ @ 133MHz | 264KB SRAM | QFN-56 | PIO Engine"
    },
    {
      "id": "ltc3350-ic",
      "name": "Analog Devices LTC3350 Supercap PLP Controller",
      "category": "Power",
      "mpn": "LTC3350EUHF#PBF",
      "vendor": "Mouser / DigiKey",
      "cost": 7.45,
      "origin": "USA",
      "cad_file": "firmware/src/drivers/ltc3350.rs",
      "desc": "Bidirectional sync controller with active cell balancing and 106 Joules backup holdup.",
      "specs": "4-Cell Buck-Boost | I2C Telemetry | Active Balancing | QFN-38"
    },
    {
      "id": "eaton-supercap",
      "name": "Eaton 10.0F 2.7V Radial Supercapacitors (x4)",
      "category": "Power",
      "mpn": "B0510-2R7105-R",
      "vendor": "Mouser / DigiKey",
      "cost": 4.40,
      "origin": "USA/Europe",
      "cad_file": "electrical/kicad/carrier_baseboard.kicad_pro",
      "desc": "4-cell series supercapacitor string delivering >880ms holdup at 120W peak load.",
      "specs": "10.0F 2.7V Radial | Low ESR (35mΩ) | -40°C to +85°C"
    },
    {
      "id": "ideal-diode-efuse",
      "name": "TI LM74700 Ideal Diode + TPS25982 eFuse",
      "category": "Power",
      "mpn": "LM74700QDBVRQ1",
      "vendor": "DigiKey / TI Direct",
      "cost": 2.80,
      "origin": "USA",
      "cad_file": "electrical/kicad/carrier_baseboard.kicad_pro",
      "desc": "<0.75µs reverse cutoff ideal diode paired with 15A active inrush clamping eFuse.",
      "specs": "0.75µs Reverse Cutoff | 15A eFuse Clamping | Auto-Retry"
    },
    {
      "id": "u3-socket",
      "name": "Amphenol SFF-TA-1001 U.3 Drive Sockets (x8)",
      "category": "Cabling",
      "mpn": "10148784-101LF",
      "vendor": "Amphenol / Mouser",
      "cost": 11.20,
      "origin": "USA/Singapore",
      "cad_file": "electrical/kicad/carrier_baseboard.kicad_pro",
      "desc": "Universal SAS/SATA/NVMe U.3 high-durability right-angle surface mount sockets.",
      "specs": "SFF-TA-1001 Standard | Tri-Mode Support | 500 Cycle Durability"
    },
    {
      "id": "fasteners-gussets",
      "name": "M5 Corner Gussets, Drop-In T-Nuts & Brass Inserts",
      "category": "Mechanical",
      "mpn": "FAST-KIT-01",
      "vendor": "McMaster-Carr",
      "cost": 16.00,
      "origin": "USA",
      "cad_file": "mechanical/01_2020_Extrusion_Skeleton_Blueprint.md",
      "desc": "Die-cast 90° corner brackets, 10.9-grade button head screws, and heat-set inserts.",
      "specs": "Cast Aluminum Gussets | M5x10mm 10.9 Bolts | M3 Heat-Set Inserts"
    }
  ]
}