A seller in Changsha is offering a RTX 5090 with 96 GB of GDDR7 memory on Goofish, three times the capacity of the 32 GB in a standard RTX 5090. The listing is aimed exclusively at businesses and does not demonstrate that the modified card works: accessing that memory would require a custom board and BIOS.
The offer appeared on Xianyu, the Chinese second-hand marketplace also known as Goofish. According to Wccftech, hardware repair specialist VIK-on shared the listing, posted by a Changsha seller using the name “Super cute Minami Kotori”.
An RTX 5090 with memory on both sides
The listing images show a heavily modified card with Samsung memory modules installed on both sides of the board. Pronetic describes 48 GB visible on one side, arranged in 3 GB modules and running at 28 Gbps. The listing does not show the other side; the configuration required to reach 96 GB is inferred from the advertised design.
Notebookcheck and Wccftech describe this layout as a “clamshell” configuration: chips are placed on both sides of the PCB to expand the available memory. The seller advertises a complete solution that, in addition to the card, would include schematics for a custom PCB and modified BIOS firmware. These components would be necessary for the system to recognize the additional capacity.
The 96 GB figure matches the memory capacity Notebookcheck attributes to the RTX Pro 6000 Blackwell, a much more expensive professional product. The comparison has its limits: the outlet notes that the RTX 5090 modification would not include that card’s professional features. However, its 96 GB could allow larger AI models to be loaded than would fit on a standard 32 GB RTX 5090.
Display price and private negotiation
The listing shows 6,488,888 yuan, but the seller presents this as a provisional figure. The actual cost would be negotiated privately with interested buyers, so the published number is not a confirmed sale price.
Reports covering the listing give different conversions: Wccftech estimates about $900,000, while Mydrivers puts it at approximately $970,000. Wccftech compares its conversion with a figure of $16,000 for the RTX Pro 6000 and describes the provisional amount as 57 times higher. These are approximate conversions of an amount that is not the final price.
The seller does not accept inquiries from individuals, according to the outlets that reviewed the offer. Potential corporate buyers must identify themselves by their company name and sign a confidentiality agreement. Wccftech and Mydrivers add that hardware testing would only be arranged through verified intermediaries; Pronetic notes that the seller requires confidentiality during negotiations.
The offer still lacks proof that it works
The operation of this specific unit has not been verified, and no test results or benchmarks have been published. An image of the board and a description of its components are not enough to confirm that the modified BIOS can manage the advertised 96 GB. Pronetic points out that a demonstration by the seller would help lend credibility to the offer, but there is no indication that one has taken place.
Wccftech suggests that tests could emerge in the coming weeks, since the seller says trials can be conducted through intermediaries. For now, that possibility is not confirmation that tests will be published or that the card has passed one. Notebookcheck also notes that there is no verified demonstration of this modification in operation.
Furthermore, this is not the first offer for a 96 GB RTX 5090 to appear online. Notebookcheck mentions another similar listing on Alibaba in September, whose memory specifications contradicted one another and raised doubts about its authenticity. None of these references independently validates the card now being advertised.
The wider context: shortages and AI cards
The offer comes at a time when finding an RTX 5090 in stores is difficult. Pronetic reports rumors that the model may have been discontinued, but also says Nvidia maintains that it remains on sale despite the shortage. Another rumor cited by the outlet suggests Nvidia may be allocating production of the GB202 GPU, used by the RTX 5090, to the RTX Pro 6000, which is aimed at AI and more profitable for the company.
Meanwhile, several outlets describe Chinese workshops dismantling commercial RTX 5090 cards and moving their GPUs to custom boards for AI servers. Wccftech links this practice to the difficulty of obtaining units and the interest in increasing memory using custom PCBs. The Goofish listing fits this context, although it does not confirm the origin of its components or the success of the modification.
What remains, then, is an offer with strict purchasing requirements, a striking figure that serves only as a reference, and a technically described configuration that has yet to be publicly validated. The next concrete sign would be an operational test conducted by the seller or an intermediary.
Sources: Pronetic, Notebookcheck, 快科技, Wccftech
