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ACASIS 40Gbps M.2 NVMe SSD Enclosure, TBU405 for M1 M2 Pro/Max, Compatible with Thunderbolt 4/3/USB3.2/3.1/3.0/2.0, M.2 Enclosure Support SSD 2280/2260/2242/2230 B+M M-Key

ACASIS 40Gbps M.2 NVMe SSD Enclosure, TBU405 for M1 M2 Pro/Max, Compatible with Thunderbolt 4/3/USB3.2/3.1/3.0/2.0, M.2 Enclosure Support SSD 2280/2260/2242/2230 B+M M-Key

Q: Is this the newest model or is there a newer model out?

who can tell what's truthful, with all this bogus 40Gbps USB4 marketing documentation. the ACASIS site presently states this TBU405 contains "Intel® JHL7440 Thunderbolt™3 with REALTEK® RTL9210B" that USB interface chip RTL9210B is USB 3.1 • 10Gbps. but the Q&A here states it's a different chip JMS583 with that same lowly USB 3.1 • 10Gbps. the ACASIS tool-less model TBU401 is now shipping with TBU401e on the box. "e". but that Amazon sales page and the ACASIS online marketing page don't mention anything about that "e" model update. it's also documented to contain a RTL9210B chip. but a video shows it formerly contained a JMS583. https://www.amazon.com/ask/questions/Tx220PG5HNIY0I3 so. what you see here might NOT be what you get. .

Q: Looking for those who have tried a wd sn850x gen4 in this tbu-405 enclosure. all work well? any performance drop / fails? does it handle gen4 well?

based on below details • there is adequate power supplied by TB. • but insufficient power from native USB. google online image of this WD SN850X sticker shows 3.3V x 2.8A = 9.24 watts. M.2 specification 1.0 states its max power limit is 8.25 watts. that's a little puzzling isn't it? this enclosure's Intel JHL7440 Thunderbolt3 chip datasheet average TDP power is stated to be 2.4W exactly how much more power this enclosure requires isn't disclosed. 9.24 + 2.4 = 11.64 watts native USB4 per published specification can supply only 7.5W (for x2 lane, only 4.5W for USB x1 lane) Thunderbolt3/4 specs are not publicly available, but unqualified online claims say 15W ------------------------------------ regarding speed of this Gen4 7300 MB/s SSD it can get only approx 2750 MB/s in this Gen3 enclosure. if you're happy with that substandard performance from Gen4, very good but it's not even Gen3 top speed.

Q: What is the difference between acasis tbu401 & tbu405?

according to the Seller in that ad, the two models have the exact same chipset. so the functional difference would seemingly be only that the 401 is tool-less. https://www.amazon.com/ask/questions/Tx220PG5HNIY0I3

Q: Compatible with Samsung 980 or 990 Pro?

Yes, I have the 1TB Samsung 980 Pro running in my Acasis case with no problems on either MacBook Pro or Mac Mini Pro.

Product ID: 466046320

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Details

Hardware Interface
USB
Brand
FREEGENE
Product Dimensions
3.94"L x 2.4"W
Hardware Platform
Windows
Material
Aluminum

⚡40Gbps ultra-fast transfer

📏Compact pocket-sized design

🧊Dual-chip heat dissipation

Frequently Bought Together

ACASIS 40Gbps M.2 NVMe SSD Enclosure, TBU405 for M1 M2 Pro/Max, Compatible with Thunderbolt 4/3/USB3.2/3.1/3.0/2.0, M.2 Enclosure Support SSD 2280/2260/2242/2230 B+M M-Key

Samsung 990 PRO SSD NVMe M.2 PCIe Gen4, M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and Heavy Duty Workstations, MZ-V9P2T0B/AM

Description

⚡ Unlock your data’s full potential at 40Gbps — speed that keeps up with your hustle!

BLAZING 40 GBPS SPEED - Experience lightning-fast data transfers up to 2805MB/s read and 2734MB/s write — no more waiting around.
NEXT LEVEL STABILITY - Dual JHL7440 chip control ensures rock-solid performance and superior heat management for marathon work sessions.
PLUG PLAY SIMPLICITY - No drivers needed, hot-swappable, and instantly recognized across devices — just connect and conquer your workflow.
UNIVERSAL COMPATIBILITY - Seamlessly works with Thunderbolt 4/3, USB 4/3.2/3.1/3.0/2.0 and supports Windows, macOS, Linux, plus M1 Pro/Max & iPad Pro.
TRAVEL READY PORTABILITY - Slim, lightweight, and pocket-friendly — your ultimate on-the-go SSD enclosure for business trips and remote work.

The ACASIS 40Gbps M.2 NVMe SSD Enclosure (TBU405) features dual JHL7440 chips for enhanced stability and heat dissipation, supports ultra-fast data transfer speeds up to 2805MB/s read and 2734MB/s write, and offers broad compatibility with Thunderbolt 4/3 and USB standards. Its compact, lightweight design makes it perfect for professionals on the move, supporting M.2 SSD sizes 2280/2260/2242/2230 with B+M M-Key, and works seamlessly across Windows, macOS, Linux, and Apple M1 Pro/Max devices without requiring drivers.

Specifications

Hard Disk Form Factor	2.5 Inches
Compatible Devices	Laptop
Data Transfer Rate	600 Megabytes Per Second
Maximum Number of Supported Devices	1
Hardware Platform	Windows
Memory Storage Capacity	8 TB
Hardware Interface	USB Type C
Item Weight	0.16 Kilograms
Item Dimensions L x W x H	3.94"L x 2.4"W x 0.57"H

Have a Question? See What Others Asked

Is this the newest model or is there a newer model out?

Looking for those who have tried a wd sn850x gen4 in this tbu-405 enclosure. all work well? any performance drop / fails? does it handle gen4 well?

What is the difference between acasis tbu401 & tbu405?

Compatible with Samsung 980 or 990 Pro?

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