'The best of its kind': DapuStors 245.76TB PCIe Gen5 SSD is a speed monster youll likely never own

Date:
Mon, 30 Mar 2026 21:35:00 +0000

Description:
DapuStors 245TB SSD increases storage density and reduces infrastructure needs, though write efficiency and endurance trade-offs remain evident under scaling conditions.

FULL STORY ======================================================================Copy link Facebook X Whatsapp Reddit Pinterest Flipboard Threads Email Share this article 0 Join the conversation Follow us Add us as a preferred source on Google Newsletter Tech Radar Pro Are you a pro? Subscribe to our newsletter Sign up to the TechRadar Pro newsletter to get all the top news, opinion, features and guidance your business needs to succeed! Become a Member in Seconds Unlock instant access to exclusive member features. Contact me with news and offers from other Future brands Receive email from us on behalf of our trusted partners or sponsors By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over. You are
now subscribed Your newsletter sign-up was successful Join the club Get full access to premium articles, exclusive features and a growing list of member rewards. Explore An account already exists for this email address, please log in. Subscribe to our newsletter Four DapuStor Roealsen6 R6060 drives now deliver a full petabyte of storage Read speeds remain strong while write limitations become more apparent Fewer physical drives reduce rack space, power consumption, and overall infrastructure complexity Projections made in 2025 that SSD capacities could reach around 246TB by the end of 2025 are now materializing, with DapuStors latest drive meeting expectations.

The DapuStor Roealsen6 R6060 offers 245.76TB capacity in a single E1.L form factor and sustains the doubling trend moving from 61.44TB to 122.88TB and
now to nearly 256TB equivalents. This scale means only four such drives are required to reach a petabyte of storage, which greatly alters how data
centers approach physical space and infrastructure planning. Article
continues below You may like Chinese storage startup uses ancient, controversial technique to deliver 'extraordinarily fast and resilient' SSD: this weirdly-named Roealsen6 unlocks hardware compression to deliver incredible PCIe SSD speeds Micron announces a QLC SSD just weeks after
killing its beloved Crucial brand the 3610 is a basic Gen5 SSD that's
somehow faster than Gen4 TLC Worlds largest SSD has tripled in price in just nine months and now costs more than a new car Petabyte-scale storage with fewer drives The drive relies on PCIe Gen5 connectivity and a 16-channel controller, reaching up to 14,000MB/s sequential read throughput and approximately 2.1 million IOPS for random reads.

These figures align closely with measured results, suggesting that the advertised specifications are not exaggerated in this case.

However, the architecture depends on eQLC NAND and limited onboard DRAM,
which introduces trade-offs that become more visible as capacity increases.

This SSD is compatible with systems such as Ubuntu, Windows Server, and
VMware ESXi, which implies that it targets deployment in large-scale environments rather than individual use. Are you a pro? Subscribe to our newsletter Sign up to the TechRadar Pro newsletter to get all the top news, opinion, features and guidance your business needs to succeed! Contact me
with news and offers from other Future brands Receive email from us on behalf of our trusted partners or sponsors By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.

The Roealsen6 R6060 is designed primarily for read-intensive workloads, and this design choice shapes its overall behavior.

Sequential read performance slightly exceeds official figures, reaching over 14,000MB/s during testing, while sequential write speeds remain around 3,600MB/s.

Random read operations also perform strongly, particularly under 4K and 8K workloads, where the drive delivers near its rated limits. What to read next This is the first PCIe 6.0 SSD you can actually buy and by 'you' I mean hyperscalers Micron 9650 can reach 28GBps read speeds and will only be used for AI inference The best SSD in 2026 Now that's a mega drive - WD reveals plans to launch 40TB HDD, and it's planning on getting to 100TB sooner than you might expect

Write performance, however, does not scale in the same way. As capacity increases, the indirection unit grows larger, which reduces both endurance
and write efficiency.

This limitation is acknowledged within the broader category of QLC-based enterprise storage, where fast retrieval takes priority over sustained write-heavy operations.

As a result, workloads involving frequent random writes are not the intended use case, and their performance appears comparatively constrained.

Despite the density of the E1.L form factor, thermal behavior remains relatively controlled under sustained workloads.

Testing shows peak temperatures of about 51C using air cooling, which
suggests that cooling requirements are manageable even under continuous
stress conditions.

This is notable because compact enterprise drives often face thermal challenges that affect stability and performance consistency.

Since the high-capacity drive reduces the number of physical units required
in a rack, total power consumption per petabyte will be lower, reducing cost.

The R6060 reflects a shift in enterprise storage priorities, where capacity and retrieval speed are more critical than balanced performance across all workloads.

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