Fanxiang SSDs: Who Makes Them and What's Inside

Trademark register and ServeTheHome teardown reviews read 15 September 2026. Prices and counts last refreshed 2026-09-15

Who the company is

“Is Fanxiang a real company” has a documentary answer rather than an opinion. Fanxiang is not a manufacturer of its own silicon - it is a brand that designs and markets drives built around third-party controllers and NAND, sold direct through its own storefront and through Amazon and other marketplaces. The company behind the name is a matter of public record:

Public record Owner and registration status transcribed from FANXIANG - US Serial 88613744, Reg. 6078488, USPTO Trademark Status & Document Retrieval. Read 15 September 2026.

ServeTheHome independently prints the same company name - “SHENZHEN FANXIANG INFORMATION TECHNOLOGY CO, LTD” - in its reviews of the S770 and S880, so the registry record and the press record agree on who is behind the brand. ServeTheHome's own framing of the name is blunt: it describes Fanxiang as “essentially a no-name brand as far as much of our readership will be concerned” - their words, not ours, and we quote it because it is the honest starting point for why a page like this exists.

Press, attributed Company name and characterisation from Fanxiang S880 2TB PCIe Gen4 NVMe SSD Review with YMTC 232L NAND, ServeTheHome (Will Taillac, 10 September 2023). Read 15 September 2026.

What's actually inside

The single most useful fact about a budget SSD brand is what chips are actually on the board, because that is what determines how it behaves once its cache fills - not the marketing name on the heatsink. ServeTheHome has torn down three Fanxiang models. Each used a different controller:

Press, attributed S770 teardown from Fanxiang S770 2TB PCIe Gen4 SSD Review, ServeTheHome (Will Taillac, 24 August 2023). Read 15 September 2026.

Press, attributed S880 teardown from Fanxiang S880 2TB PCIe Gen4 NVMe SSD Review with YMTC 232L NAND, ServeTheHome (Will Taillac, 10 September 2023). Read 15 September 2026.

Press, attributed S660 teardown from Fanxiang S660 4TB PCIe Gen4 NVMe SSD Review, ServeTheHome (Will Taillac, 1 October 2023). Read 15 September 2026.

A teardown documents the specific unit ServeTheHome bought and opened on the date printed above it - not a guarantee that every unit sold under that model name since carries the same parts. We looked for a Fanxiang company statement describing its supplier strategy across the wider range and did not find one: not in any of the three reviews above (article body or reader comments), and not on the vendor's own site, which returned a DNS failure on every rendered read attempt this session. What the three teardowns do show, without needing a company quote to say it, is the pattern itself - three different controller vendors and two different NAND suppliers across three models is the observed fact, whatever Fanxiang's internal sourcing policy actually is.

Our own catalogue holds S660, S880R and S790R listings - the “R” suffix on the last two matters. ServeTheHome tested the base S880, not the S880R; those may or may not share a board, and nothing we could read confirms it either way, so we do not present the S880 teardown as a fact about the S880R. The same caution applies to the S790R, which has no independent teardown we could find. Both are carried as unverified in the table below rather than folded into the nearest-named model.

One more finding from the S770 and S880 reviews, because it bears on how much to trust anything the drive itself reports: ServeTheHome checked the drives' self-reported temperature against a thermal camera and found the two did not agree by a wide margin - “this drive lies about its thermal condition,” in the reviewer's words for the S770. The S660, tested separately, did not show the same gap; its self-reported temperature matched the camera. We report this because it is a documented, attributed finding about firmware honesty, not a performance ranking - we make no speed or benchmark comparisons of our own on this page.

Press, attributed Thermal-reporting finding from Fanxiang S770 2TB PCIe Gen4 SSD Review, ServeTheHome (Will Taillac, 24 August 2023). Read 15 September 2026.

The cache distinction - the most useful thing on this page

Three different terms get used loosely in SSD marketing, and they describe genuinely different hardware. DRAM cache is a dedicated memory chip on the board that holds the drive's mapping table, independent of the NAND itself. SLC caching (sometimes “dynamic SLC”) carves out a portion of the same NAND flash and runs it in a lower-density, higher-write-throughput mode as a write buffer - no separate chip, and the cache shrinks as the drive fills. HMB (Host Memory Buffer) is a different mechanism again: a DRAM-less drive borrows a small slice of the host system's own RAM over the NVMe protocol to hold its mapping table instead of carrying a chip for it. None of these is better in the abstract - they are different engineering trade-offs a buyer is choosing between, and which one a given drive uses is exactly the fact a spec sheet tends to bury.

ServeTheHome's teardown found no DRAM chip; the drive's listing title itself reads "NAND SLC Cache." ServeTheHome tested the base "S880" (Maxio MAP1602, DRAM-less, YMTC 232-layer TLC) - a related but distinct SKU from the "S880R" our catalogue carries. Fanxiang's own product page for the S880R could not be read this session (DNS failure). No independent teardown of the S790R has been published that we could find. Fanxiang's own product page could not be read this session (DNS failure).

What we measure

Everything in this section is computed from our own price database when the page loads - not asserted, not carried over from the last time someone looked.

The premium-brand gap

The commercial argument for a brand like Fanxiang, made honestly rather than asserted: at matched capacity and matched interface (NVMe-PCIe4 M.2, the same class as Samsung's 990 PRO and WD's Black SN850X), how much less does the cheapest in-stock Fanxiang listing cost per GB than the cheapest in-stock premium-tier listing right now? Across the 3 capacities where both sides currently have stock, the premium tier costs an average of +13.6% more per GB than Fanxiang. That figure buys you nothing about reliability or warranty support - both are covered above and below - it is strictly what the terabyte costs.

Positive means the premium-tier drive costs more per GB than Fanxiang at that capacity. “Premium tier” is restricted to Samsung 990 PRO (not the cheaper EVO Plus line) and WD Black SN850X, both NVMe-PCIe4 M.2, so the comparison never crosses interface or product tier.

Warranty: the published terms do not agree

Fanxiang's own materials state a warranty term, and that term is not the same figure everywhere it is printed. That inconsistency is the finding, not a gap we can resolve for you.

Press, attributed 5-year term and 2,800TBW figure, with the reviewer's own skepticism, from Fanxiang S660 4TB PCIe Gen4 NVMe SSD Review, ServeTheHome (Will Taillac, 1 October 2023). Read 15 September 2026.

Community Customer-quoted product-page wording and enforcement reports from fanxiangssd.com reviews, Trustpilot. Read 15 September 2026.

We are not in a position to referee which figure is correct for a unit you might buy today - warranty terms on a listing can change between when a review was written and when you buy, and Fanxiang's own product pages were not reachable for a direct read this session (see the note under the hardware section above). What we can say plainly: the published terms disagree with each other across every source we could read, so the only authority that actually matters is the warranty document for your specific model, read at the time of purchase - not a number repeated from a review, a forum post, or this page. See our warranty guide for how to check what a specific unit is covered for.

Where these drives show up in our own data

Fanxiang listings are not isolated to this page - they show up in two other measured findings on the site, and both are worth linking rather than restating.

On our cheapest PS5 SSD ranking, Fanxiang is not on the list of brands we mark as established storage manufacturers, so its rows carry the “unfamiliar brand” flag there - the same wording used for every brand outside that list, unchanged by anything on this page: “a name without a track record.” That flag is not a judgement on Fanxiang specifically; it is the same disclosure every unlisted brand gets, and this page exists partly so a reader who hits that flag has somewhere to find out more about the specific name.

On the PS5 SSD deals page, the live bare-drive-plus-heatsink-versus-fitted-drive comparison currently has no 500GB row at all, because we track no bare 500GB PS5-compatible drive to compare against - the S660 500GB is the only fitted listing we hold at that capacity, and by default the cheapest fitted drive in a capacity with no bare competitor sets the floor for that row. At 1TB, 2TB and 4TB, other brands currently price below Fanxiang; see the live table on that page for the current numbers rather than a snapshot here. Sony's own PS5 storage-expansion requirement is covered fully on our PS5 SSD compatibility page, which every model on this page is marketed against.

What a careful buyer checks

Nothing here is specific to Fanxiang - it is the same discipline worth applying to any budget drive from a name you do not already know, and it takes minutes.

Beyond the standard arrival check: confirm the capacity Windows or your PS5 reports matches what you paid for (a mislabelled-capacity drive is the classic budget-storage fraud, and it takes one look at Disk Management to rule out), and watch what happens to write speed once you have copied enough data to fill the SLC cache - a drive with no DRAM and a small cache can fall a long way once that buffer is exhausted, and that is a property of the hardware described above, not a defect.

Fanxiang listings in stock now

Every Fanxiang listing our tracker currently shows as purchasable, cheapest per GB first. Verdict badges compare each listing's current price against its own 30-day price history - a word beside the price, not a historical chart. Prices refresh continuously and are accurate as of the timestamp above.

Cheapest in stock: the 4TB at $0.132/GB, $529.99 total.

What people say, and where they say it

The reason a page like this exists is that the question “is Fanxiang worth buying” has been asked repeatedly on enthusiast forums and review-aggregator sites without a resolution better than anecdote. We link two sources here rather than pick favourable quotes, and summarise each in one neutral sentence.

Two sources, both linked, do not settle the question either way - that is the honest limit of what community sentiment can tell you about a brand selling at volume. What can be checked is the hardware, the warranty wording and the price, and those are measured above with a source and a date on each.

More: Fanxiang catalogue & live prices · cheapest PS5 SSD ranking · PS5 SSD compatibility requirements · warranty guide · SMART attributes that matter