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SixRackUnits

Hitesh Kumar

SixRackUnits (6RU) focuses on news about the technology itself of AI/HPC hardware, rather than the money surrounding it. If you want to know the detail behind the hardware news you read, we're here for you.

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Substack
PricingOnly free issuesPublishesMonthly
Issues22Founded2 years agoLast Issuea month ago
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Latest Issues

The Boring Reason Meta's AI Chip Strategy Might Beat Everyone Else's

Source: Meta

Meta finally lays out a strong roadmap for at least four iterations of its internal-use MTIA AI accelerator, promising serious raw performance on paper as well as a solid understanding of what’s needed for rapid and widespread...

a month ago
3

Why now? Arista’s XPO: 100s of liquid-cooled TB/s per rack unit

Arista showcases an incredibly dense 12.8T pluggable optical transceiver. Coming with integrated liquid cooling, and designed for an already mature supply chain and manufacturing base, Arista are placing their bets on availability and servi...

2 months ago
5
3

GTC Rundown - Important Stuff Only

The insides of the upcoming Spectrum-X SN6810, an Ethernet switch using NVIDIA’s CPO technology to provide 128 ports of 800G with no pluggable transceivers. Front and centre are the plumbing and fibres for cooling the ELS (External Laser So...

2 months ago
6
2

February 2026

History is supposed to repeat itself. Usually, we look back at the past year to how our plans unfolded and developed and try to learn from that, to see what we can do differently this year. This of course, assumes that the coming year will...

3 months ago
7

De-Mystifying NVIDIA's CX-8 PCIe cards

When NVIDIA announced the CX-8, things didn’t quite add up.

TL; DR: CX-8s are PCIe 6.0 NICs, and aside from the integrated ASIC version, there are three main types of PCIe card, each well suited to a different use case.

Source: NVIDIA -...

4 months ago
14
1

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  • Hitesh Kumar

    I really like AI/HPC hardware!

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