If you want a TB3/4 dock that supports NVMe SSDs up to 8TB, take a look at this Acasis option that includes a fan for $129:
www.acasis.com
I've had their air cooled case for 18 months now, tests at about 2600 MB/s, true TB4, bring your own NVMe, for $100. Works like a charm, never had any issues with disconnects, but no extra ports on my model:
www.acasis.com
ACASIS 8-in-1 Thunderbolt 3/4 SSD Enclosure & Dock
1 x Thunderbolt 4 (40Gb/s,8K@60Hz)
2 x HDMI 2.0(4K@60Hz)
1 x USB-C (10Gb/s)
2 x USB-A (10Gb/s)
1 x PD (100W)
1 x M.2 (NVMe SSD)

Acasis 8-in-1 40Gbps SSD Enclosure & Dock Compatible with Thunderbolt 3/4
ACASIS 8-in-1 40Gbps M.2 NVMe SSD Enclosure & Dock 1 x USB4 (40Gb/s,8K@60Hz)2 x HDMI 2.0 (4K@60Hz)1 x USB-C (10Gb/s)2 x USB-A (10Gb/s)1 x PD (100W)1 x M.2 (NVMe SSD) Need multitasking? This product's multi-screen output is perfect for you! The 8-in-1 40Gbps M.2 NVMe SSD Enclosure & Dock enables...

I've had their air cooled case for 18 months now, tests at about 2600 MB/s, true TB4, bring your own NVMe, for $100. Works like a charm, never had any issues with disconnects, but no extra ports on my model:

Acasis 40Gbps Tool-free M.2 NVMe SSD Enclosure Compatible with TB4/3
TBU405 VS TBU405ProTBU405 is base version (Tool-free Installation), while TBU405Pro (Tool-free Installation + Built-in Silent Fan) is an upgraded version of TBU405. The main difference is that TBU405Pro is additionally equipped with a built-in silent cooling fan. According to tests conducted by...
