Home SSDs WD Red Pro 18TB NAS Internal Hard Drive

WD - Red Pro 18TB NAS Internal Hard Drive

Price range: $389.99–523.91
💎
Exceptional Value
Outperforms 98% of ssds at a lower price than 28%.
$390 is 71% above the $227 category median.
Brand: WD
Category: Ssd
A WD 18 TB SATA 3.5 in. SSD with up to 272 MB/s read, 272 MB/s write.
PQS: 90 (computed 2026-03-14 07:04:56.605891+00:00)
GTIN-14: 00718037875729
WD - Red Pro 18TB NAS Internal Hard Drive

Key specs

A human-friendly subset of specs (non-null)
Capacity (GB)
18000
Form factor
3.5 in.
Interface
SATA
Read speed
272 megabytes per second
Write speed
272 megabytes per second

How this Ssd compares vs. 328 ssds

Percentile rank for each spec — higher means this product outperforms more of its peers.
Capacity 18000.0GB
98% Top 10%

Spec Profile Radar

Visual snapshot — outer edge = 100th percentile (best in class)

Offers

Retailer SKU Price Stock Offer Last seen
Best Buy 6523108 389.99 USD Out of stock View offer → 2026-03-14 02:49:49.771274+00:00
Newegg 9SIA0ZXDK18287 523.91 USD In stock View offer → 2026-03-12 02:23:35.737048+00:00

Recent price history (50)

Retailer Price Stock Seen at
bestbuy 389.99 USD Out of stock 2026-03-14 02:49:49.771274+00:00
bestbuy 389.99 USD Out of stock 2026-03-13 02:59:42.575639+00:00
bestbuy 389.99 USD Out of stock 2026-03-12 02:50:36.517941+00:00
newegg 523.91 USD In stock 2026-03-12 02:23:35.737048+00:00
bestbuy 389.99 USD Out of stock 2026-03-11 02:48:45.782787+00:00
newegg 523.91 USD In stock 2026-03-11 02:13:17.957802+00:00
bestbuy 389.99 USD Out of stock 2026-03-10 02:58:00.317824+00:00
newegg 523.91 USD In stock 2026-03-10 02:20:48.720102+00:00
bestbuy 389.99 USD Out of stock 2026-03-09 02:57:36.997325+00:00
bestbuy 389.99 USD Out of stock 2026-03-06 06:12:33.094071+00:00
bestbuy 389.99 USD Out of stock 2026-03-03 02:03:02.563585+00:00
bestbuy 389.99 USD Out of stock 2026-03-02 08:09:01.722981+00:00

Full specs

Show full spec table
Capacity (GB)18000
Form factor3.5 in.
InterfaceSATA
Read speed272 megabytes per second
Write speed272 megabytes per second
Reconciled at2026-03-11 02:17:02.073583+00:00
Canonical JSON (expand)
{
  "os": {
    "name": null
  },
  "car": {
    "type": null,
    "finish": null,
    "din_type": null,
    "included": null,
    "material": null,
    "compatibility": null,
    "included_trim": null,
    "included_screws": null,
    "included_harness": null,
    "included_adapters": null,
    "included_brackets": null,
    "compatibility_make": null,
    "compatibility_model": null,
    "compatibility_years": null,
    "included_connectors": null,
    "included_instructions": null,
    "retains_factory_features": null
  },
  "cpu": {
    "cores": null,
    "tdp_w": null,
    "socket": null,
    "threads": null,
    "npu_tops": null,
    "cpu_model": null,
    "lithography": null,
    "cpu_benchmark": null,
    "base_clock_ghz": null,
    "boost_clock_ghz": null
  },
  "gpu": {
    "tdp_w": null,
    "chipset": null,
    "outputs": null,
    "vram_gb": null,
    "gpu_type": null,
    "gpu_model": null,
    "vram_type": null,
    "gpu_benchmark": null,
    "base_clock_mhz": null,
    "boost_clock_mhz": null
  },
  "core": {
    "title": "WD - Red Pro 18TB NAS Internal Hard Drive",
    "seo_title": "WD WD181KFGX - 18TB SSD"
  },
  "lens": {
    "mount": null,
    "weight": null,
    "focal_length": null,
    "max_aperture": null,
    "stabilization": null
  },
  "audio": {
    "driver": null,
    "wireless": null,
    "technology": null,
    "impedance_ohms": null,
    "speakers_count": null,
    "wireless_codecs": null,
    "hi_res_certified": null,
    "frequency_response": null
  },
  "brand": "WD",
  "build": {
    "screen_glass": null,
    "chassis_material": null
  },
  "color": null,
  "extra": null,
  "model": "WD181KFGX",
  "ports": {
    "hdmi": null,
    "usb_a": null,
    "usb_c": null,
    "sd_card": null,
    "summary": null,
    "ethernet": null,
    "sim_slot": null,
    "displayport": null,
    "thunderbolt": null,
    "headphone_jack": null
  },
  "power": {
    "psu_watts": null
  },
  "camera": {
    "mount": null,
    "sensor": null,
    "weight": null,
    "iso_range": null,
    "megapixels": null,
    "rear_megapixels": null,
    "front_megapixels": null,
    "video_resolution": null,
    "windows_hello_ir": null
  },
  "gtin14": "00718037875729",
  "images": [
    "https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/6523/6523108_sd.jpg"
  ],
  "memory": {
    "ram_gb": null,
    "channels": null,
    "ram_type": null,
    "speed_mhz": null
  },
  "series": null,
  "battery": {
    "life_hours": null,
    "capacity_wh": null,
    "capacity_mah": null
  },
  "display": {
    "panel_type": null,
    "resolution": null,
    "color_gamut": null,
    "hdr_formats": null,
    "touch_screen": null,
    "screen_size_in": null,
    "brightness_nits": null,
    "refresh_rate_hz": null,
    "response_time_ms": null,
    "pantone_validated": null
  },
  "release": {
    "year": null
  },
  "storage": {
    "interface": "SATA",
    "nand_type": null,
    "read_speed": "272 megabytes per second",
    "capacity_gb": 18000,
    "form_factor": "3.5 in.",
    "write_speed": "272 megabytes per second",
    "endurance_tbw": null,
    "storage_capacity_gb": null
  },
  "category": "ssd",
  "features": {
    "webcam": null,
    "windows_ai": null,
    "form_factor": null,
    "software_perks": null,
    "backlit_keyboard": null,
    "convertible_2in1": null,
    "fingerprint_reader": null
  },
  "physical": {
    "depth_in": null,
    "width_in": 4.0,
    "height_in": 1.03,
    "weight_kg": 0.69,
    "dimensions_in": "1.028 x 4 x ? in"
  },
  "thermals": {
    "cooling_type": null,
    "thermal_interface": null
  },
  "warranty": {
    "labor": "5 Years",
    "parts": "5 Years"
  },
  "wearable": {
    "ecg": null,
    "gps": null,
    "spo2": null,
    "skin_temp": null,
    "heart_rate": null,
    "display_type": null,
    "nfc_payments": null,
    "compatibility": null,
    "music_storage": null,
    "sleep_tracking": null,
    "display_size_in": null,
    "battery_life_days": null,
    "stress_monitoring": null,
    "smart_notifications": null,
    "workout_modes_count": null,
    "water_resistance_atm": null
  },
  "appliance": {
    "btu": null,
    "eer": null,
    "ceer": null,
    "type": null,
    "modes": null,
    "smart": null,
    "steam": null,
    "zones": null,
    "finish": null,
    "air_fry": null,
    "burners": null,
    "voltage": null,
    "inverter": null,
    "noise_db": null,
    "fuel_type": null,
    "ice_maker": null,
    "wattage_w": null,
    "convection": null,
    "depth_type": null,
    "door_alarm": null,
    "fan_speeds": null,
    "frost_free": null,
    "rack_count": null,
    "sensor_dry": null,
    "third_rack": null,
    "airflow_cfm": null,
    "energy_star": null,
    "filter_type": null,
    "glide_racks": null,
    "soil_sensor": null,
    "broiler_type": null,
    "cycles_count": null,
    "defrost_type": null,
    "garage_ready": null,
    "tub_material": null,
    "venting_type": null,
    "air_direction": null,
    "baskets_count": null,
    "capacity_cuft": null,
    "cleaning_type": null,
    "drum_material": null,
    "drying_system": null,
    "energy_rating": null,
    "lighting_type": null,
    "mounting_type": null,
    "shelves_count": null,
    "cooling_system": null,
    "dimensions_hwd": null,
    "interior_light": null,
    "place_settings": null,
    "room_size_sqft": null,
    "sanitize_cycle": null,
    "sensor_cooking": null,
    "shelf_material": null,
    "spin_speed_rpm": null,
    "turntable_size": null,
    "bottle_capacity": null,
    "convection_type": null,
    "water_dispenser": null,
    "interior_coating": null,
    "annual_energy_kwh": null,
    "cutout_dimensions": null,
    "humidity_crispers": null,
    "temperature_range": null,
    "wash_cycles_count": null,
    "oven_capacity_cuft": null,
    "water_level_control": null,
    "agitator_or_impeller": null,
    "capacity_fridge_cuft": null,
    "daily_production_lbs": null,
    "independent_controls": null,
    "capacity_freezer_cuft": null,
    "lower_oven_capacity_cuft": null,
    "upper_oven_capacity_cuft": null
  },
  "networking": {
    "ports": null,
    "cellular": null,
    "band_count": null,
    "throughput": null,
    "wifi_standard": null,
    "ethernet_ports": null
  },
  "peripheral": {
    "dpi": null,
    "rgb": null,
    "platform": null,
    "driver_mm": null,
    "vibration": null,
    "microphone": null,
    "sensor_type": null,
    "switch_type": null,
    "connectivity": null
  },
  "smart_home": {
    "learning": null,
    "resolution": null,
    "connectivity": null,
    "night_vision": null,
    "power_source": null,
    "compatibility": null,
    "chime_included": null
  },
  "certifications": {
    "energy_star": null,
    "epeat_level": null
  },
  "schema_version": 1
}

Related products

Simple similarity over extracted specs (publish_set only)
Debug data (expand)
Raw title WD - Red Pro 18TB NAS Internal Hard Drive
Raw brandWD
Raw categoryBest Buy > Computers & Tablets > Computer Accessories & Peripherals > Hard Drives, SSD & Storage > Internal Hard Drives
Canonical highlights (non-null)
core.title WD - Red Pro 18TB NAS Internal Hard Drive
core.seo_title WD WD181KFGX - 18TB SSD
brand WD
model WD181KFGX
gtin14 00718037875729
images[0] https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/6523/6523108_sd.jpg
storage.interface SATA
storage.read_speed 272 megabytes per second
storage.capacity_gb 18000
storage.form_factor 3.5 in.
storage.write_speed 272 megabytes per second
category ssd
physical.width_in 4.0
physical.height_in 1.03
physical.weight_kg 0.69
physical.dimensions_in 1.028 x 4 x ? in
warranty.labor 5 Years
warranty.parts 5 Years
schema_version 1
BestBuy raw specs (pretty)
Expand BestBuy raw JSON
{
  "sku": 6523108,
  "upc": "718037875729",
  "url": "https://api.bestbuy.com/click/-/6523108/pdp",
  "name": "WD - Red Pro 18TB NAS Internal Hard Drive",
  "image": "https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/6523/6523108_sd.jpg",
  "details": [
    {
      "name": "Brand",
      "value": "WD",
      "values": [
        "WD"
      ]
    },
    {
      "name": "Model Number",
      "value": "WD181KFGX",
      "values": [
        "WD181KFGX"
      ]
    },
    {
      "name": "Product Name",
      "value": "Red Pro 18TB NAS Internal Hard Drive",
      "values": [
        "Red Pro 18TB NAS Internal Hard Drive"
      ]
    },
    {
      "name": "Storage Capacity",
      "value": "18000 gigabytes",
      "values": [
        "18000 gigabytes"
      ]
    },
    {
      "name": "Storage Drive Type",
      "value": "HDD",
      "values": [
        "HDD"
      ]
    },
    {
      "name": "Rotational Speed",
      "value": "7200 revolutions per minute",
      "values": [
        "7200 revolutions per minute"
      ]
    },
    {
      "name": "Maximum Read Speed",
      "value": "272 megabytes per second",
      "values": [
        "272 megabytes per second"
      ]
    },
    {
      "name": "Maximum Write Speed",
      "value": "272 megabytes per second",
      "values": [
        "272 megabytes per second"
      ]
    },
    {
      "name": "Heatsink",
      "value": "No",
      "values": [
        "No"
      ]
    },
    {
      "name": "Internal Or External",
      "value": "Internal",
      "values": [
        "Internal"
      ]
    },
    {
      "name": "Product Compatibility",
      "value": "Network Attached Storage (NAS)",
      "values": [
        "Network Attached Storage (NAS)",
        "Desktop computers"
      ]
    },
    {
      "name": "Form Factor",
      "value": "3.5 in.",
      "values": [
        "3.5 in."
      ]
    },
    {
      "name": "Interface(s)",
      "value": "SATA",
      "values": [
        "SATA"
      ]
    },
    {
      "name": "Data Encryption",
      "value": "No",
      "values": [
        "No"
      ]
    },
    {
      "name": "Usage",
      "value": "Network Attached Storage (NAS)",
      "values": [
        "Network Attached Storage (NAS)"
      ]
    },
    {
      "name": "Lighting Type",
      "value": "None",
      "values": [
        "None"
      ]
    },
    {
      "name": "Cache Buffer Size",
      "value": "512 megabytes",
      "values": [
        "512 megabytes"
      ]
    },
    {
      "name": "Product Height",
      "value": "1.028 inches",
      "values": [
        "1.028 inches"
      ]
    },
    {
      "name": "Product Width",
      "value": "4 inches",
      "values": [
        "4 inches"
      ]
    },
    {
      "name": "Product Weight",
      "value": "24.32 ounces",
      "values": [
        "24.32 ounces"
      ]
    },
    {
      "name": "Minimum System Requirements",
      "value": "Specifically designed for use in NAS systems with up to 8 bays",
      "values": [
        "Specifically designed for use in NAS systems with up to 8 bays"
      ]
    },
    {
      "name": "Warranty - Parts",
      "value": "5 years",
      "values": [
        "5 years"
      ]
    },
    {
      "name": "Warranty - Labor",
      "value": "5 years",
      "values": [
        "5 years"
      ]
    }
  ],
  "features": [
    {
      "feature": "Demands of Big Business\nDesigned specifically with medium or large scale business customers, WD Red Pro drives are available for up to 24-bay NAS systems. Engineered to handle high-intensity workloads in 24x7 environments. Ideal for archiving and sharing, as well as RAID array extended systems."
    },
    {
      "feature": "Technology\nExclusive advanced firmware technology, NASware 3.0, enables seamless integration, robust data protection and optimal performance for NAS systems operating under heavy demand. Improves storage performance by increasing compatibility, integration, upgradeability, and reliability."
    },
    {
      "feature": "Compatibility\nOptimized for NAS systems, unique algorithm balances performance and reliability in NAS and RAID environments. WD Red Plus drive is one of the most compatible drives available for NAS enclosures. Reflection of extensive NAS partner technology engagement and compatibility testing."
    },
    {
      "feature": "Protection\nWD Red Pro drives are equipped with a multi-axis shock sensor that automatically detects subtle shock events and dynamic fly height technology which adjusts each read-write function to compensate and protect the data. Protects the drives in larger 24-bay NAS environments."
    },
    {
      "feature": "3D Active Balance\nOur enhanced dual-plane balance control technology improves the overall drive performance and reliability. Hard drives that are not properly balanced may cause excessive vibration and noise in a multi-drive system, reduce the hard drive life span, and degrade the performance."
    },
    {
      "feature": "Error Recovery Prevention\nBuilt specifically for RAID and NAS environments, WD Red Pro drives come equipped with error recovery controls as part of NASware 3.0 technology to help reduce drive fallout in RAID applications"
    },
    {
      "feature": "Extended Drive Testing\nNAS environment that has up to 24 bays is very demanding on a hard drive with add?ed vibration and heat. This is why every WD Red Pro drive is shipped with extended thermal cycle burn-in testing to help ensure each drive is tested for extended reliable operation"
    },
    {
      "feature": "Longer Warranty Coverage\nWD Red Pro drives comes with a 5-year limited warranty for an even greater peace of mind."
    }
  ],
  "condition": "New",
  "salePrice": 389.99,
  "categoryPath": [
    {
      "id": "cat00000",
      "name": "Best Buy"
    },
    {
      "id": "abcat0500000",
      "name": "Computers & Tablets"
    },
    {
      "id": "abcat0515000",
      "name": "Computer Accessories & Peripherals"
    },
    {
      "id": "abcat0504001",
      "name": "Hard Drives, SSD & Storage"
    },
    {
      "id": "pcmcat270900050001",
      "name": "Internal Hard Drives"
    }
  ],
  "manufacturer": "WD",
  "regularPrice": 389.99,
  "shippingCost": 0.0,
  "longDescription": "Designed for power users to medium-sized organizations in RAID-optimized NAS systems with up to 24 bays. Perfect for archiving, sharing, and protecting rapidly growing amounts of data.",
  "shortDescription": null,
  "onlineAvailability": false,
  "inStoreAvailability": false
}
Newegg raw specs
raw_specs_text (pretty) — expand
https://c1.neweggimages.com/ProductImageCompressAll640/22-234-430-03.png,https://c1.neweggimages.com/ProductImageCompressAll640/22-234-430-05.png,https://c1.neweggimages.com/ProductImageCompressAll640/22-234-430-04.png