Well, we can take into account the reliability issues of the 980 PRO (not all production batches, but you can't be sure what you'll get) and the fact that the Rocket 4 didn't have such issues. Also, you can get the Rocket 4 without heatsink for US$20 less directly from Sabrent (link in the article).
A pretty disappointing sale. The samsung 980 pro is better and comes with cache and for 20 dollars less. For a dram less gen 4 ssd, this is just disappointing
Although it arrived 4 years ago, the Sabrent Rocket 4 remains an excellent NVMe PCIe 4.0 SSD, with sequential read/write speeds up to 5,000/4,400 MB/s when used with a PCIe Gen4 motherboard. Now, the 2 TB version can be acquired from Amazon for US$139.99 (53% off), while the version with heatsink is US$20 more (38% discount).