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Lacie 2big Dock STLG20000400, 20TB Hard drive, 3.5", Thunderbolt 3/USB-C, 7200rpm, Black

 

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Seagate
Part no STLG20000400
Ascent part no 824950
NZ support 0-800-443-988
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Due to worldwide supply constraints, pricing is only valid for product in stock with the supplier at the time an order is received. Our stock indicator is not updated in real time so may not reflect the actual situation at the moment you place your order.
Warranties do not cover loss of data. Subject to our Terms, any remedy for device failure is limited to replacement or refund.
Professional two-bay desktop external hard drive enclosure containing two 10TB IronWolf Pro enterprise-class hard drives, with hardware RAID support and Thunderbolt 3 connectivity. Supports RAID 0, RAID 1 and JBOD configurations, hot-swappable drives, daisy chaining and professional media-card connectivity.

Technical Specifications

Product NameLaCie 2big Dock 20TB Desktop External HDD Professional Dual-Disk Hardware RAID - USB-C - Thunderbolt 3
ManufacturerLaCie
Model NumberSTLG20000400
Product Line2big Dock
Product CategoryHard drives & SSD
STORAGE
Total Capacity20 TB
Drive Configuration2 x 10TB mechanical hard drives
RAID ModesRAID 0, RAID 1 and JBOD
Default ConfigurationRAID 0
Drive TechnologySeagate IronWolf Pro enterprise-class hard drives
Hot-swappable DrivesYes
FormattingexFAT
PERFORMANCE
Maximum Transfer SpeedUp to 550 MB/s
Drive Speed7200 rpm
CONNECTIVITY
Primary InterfaceThunderbolt 3, up to 40 Gb/s
USB InterfaceUSB 3.2 Gen 1 via USB-C, up to 5 Gb/s
Thunderbolt Ports2
USB HubUSB 3.2 Gen 2 Type-A hub port
Memory Card SlotsCFexpress Type B, CFast 2.0 and UHS-II SDXC
Video OutputDisplayPort 1.4
Thunderbolt CompatibilityThunderbolt 3, Thunderbolt 4 and Thunderbolt 2 with Apple adapter
USB CompatibilityUSB4, USB 3.0 and USB-C hosts
Daisy ChainingUp to five Thunderbolt devices
PHYSICAL
ColourBlack
DimensionsApproximately 21.7 x 11.8 x 9.33 cm
WeightApproximately 3.78 kg
POWER
Power SupplyExternal power supply
USB Charging Output7.5 W
COMPATIBILITY
Compatible Operating SystemsWindows and macOS
Additional CompatibilityiPad with USB-C
Minimum Free Disk Space600 MB recommended
Warranty Information5-year limited warranty with Data Rescue Services

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Please read our terms and conditions. We try very hard to make sure the specification and images on this page are accurate, but occasionally (and thankfully rarely) mistakes do happen. If you discover the product delivered is not as described, please let us know as soon as possible after delivery so we can correct the mistake and arrange for the product to be returned.

Seagate
Part no STLG20000400
Ascent part no 824950
NZ support 0-800-443-988
  • Free NZ deliveryNo hidden fees
  • 100% Kiwi owned34 years in business
  • Net Promoter Score 94Rated by our customers
Questions? (04) 802 3890


"Excellent work from the team to get my parcel delivered on time." Peter, 13 October 2026
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