New for 2026 is the addition of the AJA System Test, which is another synthetic benchmark that works similar to CrystalDiskMark, but with a focus on video files. We set it up to emulate a 4K video file using a 10-bit YUV codec and tested with both a 1 GB and a 64 GB file size. This is also the first time we have used this test on a more powerful NAS and even here, the 64 GB test turned out to be something of a challenge. We did end up with some odd test results in the RAID 0 test with SSD cache, but this might just be a Ugreen quirk, as both devices suffered here compared to their equivalent uncached results. The DXP4800 Plus managed to get close to the iDX6011 Pro in many of the tests when data was being copied from the NAS, but didn't stand a chance when data was written to the NAS. In the RAID 1 test, it shows that the 1 GB test data is handled by the cache on both models, but when moving to the larger 64 GB test data, neither device could handle it in cache. This is only one of two tests where Thunderbolt networking stands out, at least when it comes to writing data to the NAS.
Helios LanTest
RAID 5
Helios RAID 5 10 Gbps without and with SSD caching.
RAID 1
Helios RAID 1 10 Gbps without and with SSD caching.
RAID 0
Helios RAID 0 10 Gbps without and with SSD caching.
SSD RAID 0
Helios SSD 10 Gbps.
Thunderbolt 4 Networking SSD RAID 0
Helios SSD Thunderbolt 4.
The fourth and final synthetic benchmark drive test is a tool called Helios LanTest which runs seven different tests to measure both response time, but also raw throughput of a NAS. We ran the test five times which produces an average of those five runs to eliminate potential outliers. It was one of three synthetic benchmarks that worked with Thunderbolt 4 networking and although the write performance was decent, the read performance lagged behind 10 Gbps Ethernet.