The era of AI is booming, and recently the US stock market's storage sector has been talked about every day, with NAND, DRAM, and HBM flying everywhere. Do you all know what they are? 😂 Here's a popular science post to boost your knowledge 1. NAND Pronounced /nænd/, roughly like "Nan-de" in Chinese. Full name NAND Flash, which is flash memory. Its main feature is that data is not lost when power is off, providing persistent storage. It's everywhere around us: SSD solid-state drives, USB drives, memory cards, the 256G or 1TB internal storage in phones—all of these use it. Large SSDs in enterprise servers also use NAND. SanDisk's core asset is NAND; AI datasets and vector databases ultimately rely on it. In short, it's used for storing data. 2. DRAM Pronounced /ˈdræm/, roughly like "Dram." Full name Dynamic Random Access Memory, which is the running memory. All data is cleared when power is off, but it's much faster than NAND. Corresponding products include computer RAM sticks, 12G/16G phone RAM, and server memory. Temporary data during GPU computations is stored in DRAM. In short, it's used for running processes; it doesn't store data long but runs fast. 3. HBM No need to memorize the pronunciation; just say the letters one by one. Full name High Bandwidth Memory, a high-end upgrade of DRAM. While regular DRAM chips are laid flat on the motherboard, HBM stacks multiple layers of chips vertically, maximizing bandwidth. High-end AI GPUs like Nvidia H100/H200 and AMD MI series come standard with HBM. Note that HBM is not a separate category; it is still part of the DRAM family, just a high-end form. Production mainly relies on three companies: Micron MU, Samsung, and SK Hynix. Finally, just remember roughly: NAND is for storage, DRAM is for running processes, and HBM is a special fast-running memory for AI. Is everything clear now? #AI 🦧 #USStockMarketKnowledge

As expected, selling shovels is always the most profitable. NVIDIA servers are about to increase in price, with the increase exceeding 15% in many cases. The contract manufacturers building data centers for Microsoft, Google, and Oracle have already notified their clients to prepare for price hikes. The reason is the soaring cost of memory chips, and NVIDIA itself has not responded. Coincidentally, next Wednesday after the U.S. stock market closes (early Thursday morning Beijing time), NVIDIA will release its Q2 earnings report, which the entire market is eagerly awaiting. Wow, servers are already expensive, and a 15% price increase makes me cringe just hearing about it. The price hike also means handing a knife to Amazon, Microsoft, Google, and Meta's self-developed chips, but NVIDIA's software ecosystem moat is so deep that new data centers still can't avoid using its cards. On Friday, its stock closed down 0.98%, with a market value of $5.2 trillion, firmly holding the title of the world's top stock. In short, with this memory price hike, NVIDIA will pass the cost downstream. How well the gross margin holds up in next week's earnings report depends on what Jensen Huang has to say. #英伟达AI服务器或涨价超15%

Agent is still reliable. Even if I'm not available, it can watch over things 24/7. Set the time and monitor the strategy well, it can work like a person~ It can post articles, it can trade~ As long as the strategy is good, making money is more straightforward than doing it yourself. You have to learn to use AI Agent.

Is Puzi launching a coin today? Are you waiting for it~ Last time when Trump was launched, it directly drained the entire financial market Then everything crashed, and the market was bearish for a year

The Bitcoin bull market is here. Will there be another surge in Bitcoin ecosystem narratives? Can all the new protocols like inscriptions, small images, rgb++ finally start working? It’s been held back for so long; it’s time for a decent rebound. The Bitcoin assets in my portfolio have really been rusting away for too long~ Back then, it was all kinds of monsters and demons rushing in, but looking back now, I was really stupid—knew how to buy but not how to sell!