Our take
The Little Big Disk Thunderbolt 2 1TB suits a creative workstation that has a compatible Thunderbolt connection, can spare an outlet, and values configurable dual-SSD storage. Its most consequential decision is not the advertised peak speed; it is whether the older connection and power arrangement fit the computer and desk.
A desk-based creative workflow with a verified Thunderbolt path and room for its adapter.
Buyers who need USB-only compatibility, a bus-powered portable drive, or a model with current host support and condition independently established.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Two internal PCIe Gen 2 SSDs provide a documented 1TB workstation configuration in this exact item 9000477.
- Two Thunderbolt 2 ports support a compatible daisy-chain setup, with the manual documenting host and chain limits.
- RAID 0 arrives configured, while RAID 1 and JBOD are documented alternative layouts through macOS Disk Utility.
What to weigh up
- No USB data port is documented, so this is unsuitable for a USB-only host or an adapter guess.
- The 12V external adapter and ventilation needs make desk placement more involved than bus-powered portable drives.
- Factory RAID 0 is not redundant; the drive's current condition, listing identity and host support remain unverified.
The key details
| Model covered | 9000477 |
|---|---|
| Advertised capacity | 1TB |
| Drive configuration | Dual PCIe Gen 2 SSDs |
| Host connection | Thunderbolt 2, two ports |
Performance figures are manufacturer claims. Source checked October 6, 2026. Regional models and included accessories can differ.
What the features mean for you
A workstation SSD with a specific job
The 9000477 is a compact, powered storage unit built around two PCIe Gen 2 solid-state drives, not a simple USB pocket disk. LaCie's manual describes it as a creative-work drive and documents two Thunderbolt 2 ports. The exact 9000477 retail record identifies the 1TB version. That combination can make sense beside a compatible editing workstation where a fast scratch or project volume is useful. It should not be mistaken for a general-purpose external drive that works from any USB socket: the connection standard and external power requirement shape the whole purchase.
Confirm the connection before comparing speed claims
LaCie documents up to 20Gb/s bidirectional link bandwidth for Thunderbolt 2, but the host computer must support Thunderbolt 2 to reach that interface ceiling. A first-generation Thunderbolt system is listed with a lower ceiling. The connector can resemble Mini DisplayPort, yet the manual warns that the drive works only with a Thunderbolt-capable host and a Thunderbolt cable. Before buying an older unit, identify the computer port and cable you will actually use. The retailer's high read/write figures are vendor specifications; they are not a promise that every computer, chain, file type, or drive condition will reproduce them.
RAID changes the risk and capacity tradeoff
The product is supplied as a striped RAID 0 set, and the exact-model listing describes RAID 1 and JBOD alternatives through macOS Disk Utility. RAID 0 can prioritize throughput and combine the two devices into one volume, but it offers no mirror between them: a failure in either member can put the striped set at risk. RAID 1 mirrors data and trades usable space for duplication; JBOD is a different layout rather than a backup. Choose a mode for a defined workflow, and keep a separate backup whatever layout you select. Do not count a mirrored set as a replacement for another copy.
It needs a place on the desk and an outlet
This is not bus-powered. LaCie's manual shows a 12V power connection and asks users to keep the enclosure's vent clear with airflow around it. The enclosure may feel warm during extended use, according to the manual. That makes placement a practical part of the decision: allow room for the stand, ventilation, Thunderbolt cable, and adapter. The two Thunderbolt ports allow daisy chaining compatible devices, but the drive should be placed first in certain mixed-generation chains if the higher Thunderbolt 2 ceiling matters. A desk-based workflow is a more natural fit than travel without access to power.
Compatibility and ownership need a cautious check
The source material is for an older Thunderbolt 2 product. The manual documents Thunderbolt and Thunderbolt 2 hosts and macOS Disk Utility for RAID setup; it does not establish current support across every present-day operating system, adapter, dock, or security setting. The exact retail record has an older system requirement, which makes a host-specific compatibility check essential. If buying used, the actual drive health, cables, power adapter, prior RAID state, and return terms are unknown here. No claim about reliability, condition, or current vendor service follows from the manufacturer's original specifications.
Who should shortlist it
Shortlist the 9000477 when the computer already has a verified Thunderbolt path, a powered desk setup is acceptable, and a dual-SSD array solves a real project need. A buyer who wants travel convenience should prioritize bus power and a current common interface instead. Someone who needs USB may prefer the Seagate Expansion SSD in this small batch, while someone maintaining an older high-capacity USB archive may have a different reason to inspect the Pushbutton Backup. Those comparisons are about documented connection and power facts, not an unsupported ranking of speed, reliability, or value.
What else to compare
Before you buy
Can I plug it into any Mini DisplayPort socket?
No. The connector shape alone is not enough; LaCie says the host must support Thunderbolt and that a Thunderbolt cable is required. The manual also gives a lower ceiling for a first-generation Thunderbolt host.
Does RAID 0 protect my files?
No. It stripes data for throughput but does not mirror it. Keep another backup copy. RAID 1 is the mirrored choice in the saved listing, but it still does not replace a separate backup.
Is the stated 1,375 MB/s a tested result?
No. It is a retail-listed maximum; actual results depend on the host, connection path, RAID setup, workload, and the drive's condition. The saved record treats it as a source claim, not a product test.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- B&H exact-model listing for LaCie item 9000477 ↗ — checked October 6, 2026.
- LaCie Little Big Disk Thunderbolt 2 user manual ↗ — checked October 6, 2026.
- B&H exact-model listing for item 9000477 ↗ — checked October 6, 2026.
- Full Compass archived item catalogue ↗ — checked October 6, 2026.
The decision
The Little Big Disk Thunderbolt 2 1TB suits a creative workstation that has a compatible Thunderbolt connection, can spare an outlet, and values configurable dual-SSD storage. Its most consequential decision is not the advertised peak speed; it is whether the older connection and power arrangement fit the computer and desk.
Is it the right fit?
Check the exact model and today’s offers on Amazon.