Uploaded September 2025 | Updated September 2026, 1 week ago
In this video I'm showing you what firmware my new Acasis TB501 Pro Thunderbolt 5 SSD enclosure has. This is the version that is compatible with PCIe Gen 5 NVMe SSDs. In this setup I am using a 4TB Samsung 9100 Pro.
Checkout the previous videos about the issues with the new Gen 5 TB501 Pro:
PROBLEMS WITH ACASIS TB501 PRO YOU NEED TO WATCH THIS VIDEO ABOUT THE FIRMWARE FIX AND ACASIS RETURN youtu.be/MiVmPmdMrG4
My Problems And Experience With Acasis And Their TB501 Pro Firmware Issues And My Speed Test Results youtu.be/1JBkXQ4f7og
FIXING ACASIS TB501 Pro Thunderbolt 5 SSD Firmware Problems MacBook Pro Mac mini M1 M2 M3 M4 M5
youtu.be/MADBReYqkm4
For more information I suggest you contact Acasis and ask, you can contact them at support@acasis.com
However, what I can tell you is this. I received my two new enclosures on the 13th September 2025 and they both have firmware 62.62.
They both come in different packaging than the previous TB501 Pro enclosures, both my previous Gen 4 and Gen 5 versions.
However, the 'new' packaging only mentions TB501 Pro on a sticker on the packaging and not on the box itself and there's no mention of PCIe Gen 5 compatibility.
They both look exactly the same as my previous Gen 4 and Gen 5 enclosures but the enclosures do not mention anything about PCIe Gen 5 compatibility.
As far as I am aware, these Gen 5 compatible enclosures are only available direct from the Acasis website and I don't know when or even if they will be available anywhere other than the Acasis website, Amazon as a for instance.
*Checkout my SSD speed tests & external SSD build guides playlist*
youtube.com/playlist?list=PLleKChtNUwZQvaYS9r0zHvkaTXSYlnX6q
*Some of my product recommendations*
*ACASIS Website*
If buying from the ACASIS website use my 15% discount promo code DAVID15
ACASIS website geni.us/ACASIS-51
SSD enclosures:
TB501 Pro Thunderbolt 5 enclosure geni.us/ACASIS-57
Mac Mini M4 Workstation enclosure geni.us/ACASIS-58
TBU405Pro Thunderbolt 4 enclosure geni.us/ACASIS-53
TBU401 Thunderbolt 4 enclosure geni.us/ACASIS-54
EC-3901 4 bay Thunderbolt 4 RAID Enclosure geni.us/ACASIS-55
All ACASIS SSD Enclosures geni.us/ACASIS-56
Docks & hubs:
DS9007 21 Port 40Gbps Dock geni.us/ACASIS-59
DS-7A15 15 port USB-C dock geni.us/ACASIS-60
DS-0202 14 Port USB-C dock geni.us/ACASIS-61
All ACASIS Docks and Hubs geni.us/ACASIS-62
*ACASIS Amazon*
ACASIS Amazon Store geni.us/ACASIS-105
SSD enclosures:
TB501 Pro Thunderbolt 5 enclosure geni.us/ACASIS-100
M4 Mac mini Workstation dock/enclosure geni.us/ACASIS-106
TBU405Pro Thunderbolt 4 enclosure geni.us/ACASIS-101
TBU401 Thunderbolt 4 enclosure geni.us/ACASIS-102
All ACASIS Thunderbolt and USB enclosures geni.us/ACASIS-103
*WD_Black SN850X Gen 4 SSD on Amazon*
8TB amzn.to/478cVJn
4TB amzn.to/3U7TqsP
2TB amzn.to/3Hb32jC
1TB amzn.to/3He93Mp
Other Gen 4 NVMe SSDs geni.us/Gen4SSDs
*Samsung 9100 Pro PCIe Gen 5 NVMe SSD*
*WARNING - ONLY BUY THIS SSD IF YOU ARE USING THE NEW ACASIS TB501 PRO, WHICH IS COMPATIBLE WITH PCIe GEN 5 NVMe SSDs, OR OTHER GEN 5 COMPATIBLE SSD ENCLOSURES*
Samsung Amazon Store geni.us/hBdBf
4TB amzn.to/4lpGMke
2TB amzn.to/413Jjct
1TB amzn.to/3JcjW1Z
Other Gen 5 NVMe SSDs geni.us/7SvmU
*Apple Mac Computers on Amazon*
Apple Amazon Store geni.us/Apple_Amazon_Store
MacBook Pro M4 geni.us/OLuacfl
MacBook Air M4 geni.us/x5G9
Mac Mini M4 geni.us/yJW1
Mac Studio M4 geni.us/V2lDm
Mac Studio M3 geni.us/7zws
iMac M4 geni.us/1k4pwp
*AMAZON ASSOCIATE DISCLOSURE*
I am an Amazon Associate. My Amazon links are Amazon affiliate links. I earn money from qualifying purchases when you use my Amazon affiliate links. *Thank you for using my Amazon links 👍*
*OTHER EARNINGS AND COMMISSIONS*
I also earn money from other product links within my video description. *Thank you for using any of my product links 👍*
*You can also send me a coffee* paypal.me/DavidHarry
*My Amazon pages with videos and product links*
Amazon USA amazon.com/shop/davidharry
Amazon UK amazon.co.uk/shop/davidharry
*My Global Amazon Affiliate links*
Using my Global Amazon Affiliate links when you buy anything from Amazon does not cost you any extra. However, the money that I earn helps me and my YouTube channel. *Thank you for using my Global Amazon links 👍*
Amazon USA: geni.us/Amazon-USA
Amazon UK: geni.us/Amazon-UK
Amazon Canada: geni.us/Amazon-Canada
Amazon Deutschland: geni.us/Amazon-Deutschland
Amazon España: geni.us/Amazon-Espana
Contact for product reviews: YouTube@DavidHarry.com
DavidHarry.com
I’m David Harry. Thank you very much for watching this video, take care and goodbye now.
Cheers,
Dave.
In this video I'm showing you what firmware my new Acasis TB501 Pro Thunderbolt 5 SSD enclosure has. This is the version that is compatible with PCIe Gen 5 NVMe SSDs. In this setup I am using a 4TB Samsung 9100 Pro.
Checkout the previous videos about the issues with the new Gen 5 TB501 Pro:
PROBLEMS WITH ACASIS TB501 PRO YOU NEED TO WATCH THIS VIDEO ABOUT THE FIRMWARE FIX AND ACASIS RETURN youtu.be/MiVmPmdMrG4
My Problems And Experience With Acasis And Their TB501 Pro Firmware Issues And My Speed Test Results youtu.be/1JBkXQ4f7og
FIXING ACASIS TB501 Pro Thunderbolt 5 SSD Firmware Problems MacBook Pro Mac mini M1 M2 M3 M4 M5
youtu.be/MADBReYqkm4
For more information I suggest you contact Acasis and ask, you can contact them at support@acasis.com
However, what I can tell you is this. I received my two new enclosures on the 13th September 2025 and they both have firmware 62.62.
They both come in different packaging than the previous TB501 Pro enclosures, both my previous Gen 4 and Gen 5 versions.
However, the 'new' packaging only mentions TB501 Pro on a sticker on the packaging and not on the box itself and there's no mention of PCIe Gen 5 compatibility.
They both look exactly the same as my previous Gen 4 and Gen 5 enclosures but the enclosures do not mention anything about PCIe Gen 5 compatibility.
As far as I am aware, these Gen 5 compatible enclosures are only available direct from the Acasis website and I don't know when or even if they will be available anywhere other than the Acasis website, Amazon as a for instance.
*Checkout my SSD speed tests & external SSD build guides playlist*
youtube.com/playlist?list=PLleKChtNUwZQvaYS9r0zHvkaTXSYlnX6q
*Some of my product recommendations*
*ACASIS Website*
If buying from the ACASIS website use my 15% discount promo code DAVID15
ACASIS website geni.us/ACASIS-51
SSD enclosures:
TB501 Pro Thunderbolt 5 enclosure geni.us/ACASIS-57
Mac Mini M4 Workstation enclosure geni.us/ACASIS-58
TBU405Pro Thunderbolt 4 enclosure geni.us/ACASIS-53
TBU401 Thunderbolt 4 enclosure geni.us/ACASIS-54
EC-3901 4 bay Thunderbolt 4 RAID Enclosure geni.us/ACASIS-55
All ACASIS SSD Enclosures geni.us/ACASIS-56
Docks & hubs:
DS9007 21 Port 40Gbps Dock geni.us/ACASIS-59
DS-7A15 15 port USB-C dock geni.us/ACASIS-60
DS-0202 14 Port USB-C dock geni.us/ACASIS-61
All ACASIS Docks and Hubs geni.us/ACASIS-62
*ACASIS Amazon*
ACASIS Amazon Store geni.us/ACASIS-105
SSD enclosures:
TB501 Pro Thunderbolt 5 enclosure geni.us/ACASIS-100
M4 Mac mini Workstation dock/enclosure geni.us/ACASIS-106
TBU405Pro Thunderbolt 4 enclosure geni.us/ACASIS-101
TBU401 Thunderbolt 4 enclosure geni.us/ACASIS-102
All ACASIS Thunderbolt and USB enclosures geni.us/ACASIS-103
*WD_Black SN850X Gen 4 SSD on Amazon*
8TB amzn.to/478cVJn
4TB amzn.to/3U7TqsP
2TB amzn.to/3Hb32jC
1TB amzn.to/3He93Mp
Other Gen 4 NVMe SSDs geni.us/Gen4SSDs
*Samsung 9100 Pro PCIe Gen 5 NVMe SSD*
*WARNING - ONLY BUY THIS SSD IF YOU ARE USING THE NEW ACASIS TB501 PRO, WHICH IS COMPATIBLE WITH PCIe GEN 5 NVMe SSDs, OR OTHER GEN 5 COMPATIBLE SSD ENCLOSURES*
Samsung Amazon Store geni.us/hBdBf
4TB amzn.to/4lpGMke
2TB amzn.to/413Jjct
1TB amzn.to/3JcjW1Z
Other Gen 5 NVMe SSDs geni.us/7SvmU
*Apple Mac Computers on Amazon*
Apple Amazon Store geni.us/Apple_Amazon_Store
MacBook Pro M4 geni.us/OLuacfl
MacBook Air M4 geni.us/x5G9
Mac Mini M4 geni.us/yJW1
Mac Studio M4 geni.us/V2lDm
Mac Studio M3 geni.us/7zws
iMac M4 geni.us/1k4pwp
*AMAZON ASSOCIATE DISCLOSURE*
I am an Amazon Associate. My Amazon links are Amazon affiliate links. I earn money from qualifying purchases when you use my Amazon affiliate links. *Thank you for using my Amazon links 👍*
*OTHER EARNINGS AND COMMISSIONS*
I also earn money from other product links within my video description. *Thank you for using any of my product links 👍*
*You can also send me a coffee* paypal.me/DavidHarry
*My Amazon pages with videos and product links*
Amazon USA amazon.com/shop/davidharry
Amazon UK amazon.co.uk/shop/davidharry
*My Global Amazon Affiliate links*
Using my Global Amazon Affiliate links when you buy anything from Amazon does not cost you any extra. However, the money that I earn helps me and my YouTube channel. *Thank you for using my Global Amazon links 👍*
Amazon USA: geni.us/Amazon-USA
Amazon UK: geni.us/Amazon-UK
Amazon Canada: geni.us/Amazon-Canada
Amazon Deutschland: geni.us/Amazon-Deutschland
Amazon España: geni.us/Amazon-Espana
Contact for product reviews: YouTube@DavidHarry.com
DavidHarry.com
I’m David Harry. Thank you very much for watching this video, take care and goodbye now.
Cheers,
Dave.
