fanxiang S690Q 2TB NVMe SSD: PCIe Gen4 speeds, PS5 fit and who it suits

The fanxiang S690Q is an internal M.2 solid state drive that uses the PCIe Gen4 x4 interface and the NVMe 1.4 protocol. The 2TB version is positioned as extra storage for a PlayStation 5, and fanxiang says it also works in desktops and laptops. This page explains what its specs mean and what to confirm before fitting one.

What PCIe Gen4 x4 and NVMe 1.4 mean

NVMe is the protocol that lets an SSD talk directly to the processor over PCI Express lanes, instead of the older SATA link. "Gen4 x4" means four lanes of PCIe 4.0, which gives much more bandwidth than SATA. fanxiang rates the S690Q at up to 5200 MB/s. Such figures are peak sequential speeds, so everyday loading times depend on the game or application and on the rest of the system.

Using it with a PS5

The PS5 has an expansion slot for M.2 NVMe drives, and Sony's published requirements call for a PCIe Gen4 drive with a heatsink. fanxiang lists the S690Q as compatible, with a graphene heat dissipation sticker. The brand says the sticker helps keep temperatures low during long sessions. Check the console's current guidance and the clearance in the slot, because a heatsink adds thickness. A drive with only a thin sticker may need extra care at fitting.

Remember that on a console an expansion drive typically holds PS5 games directly, while it is a good idea to follow the manufacturer's instructions for opening the cover and seating the drive.

Capacities and the SLC cache

The S690Q range runs from 500GB to 4TB. The listing mentions a 3D NAND and SLC cache design. In general, an SLC cache uses a fast portion of the flash to absorb writes, so speed can drop once a long write fills it. For gaming, where reads dominate, this usually matters little. Large file copies are where it shows.

Use in a PC or laptop

The 2280-style M.2 form factor fits most modern desktop motherboards and many laptops that have a free NVMe slot. Gen4 speeds need a board and processor that support PCIe 4.0. In an older Gen3 slot the drive should still work but runs at a lower speed.

Warranty and support

fanxiang states a five-year after-sales service and lifetime technical support. Read the terms in the paperwork for what they cover.

What to check before you buy

• Slot type: confirm that your device has an M.2 NVMe slot, and not a SATA-only M.2 slot.
• Physical fit: check the maximum drive length and the height clearance, especially under the PS5 cover or in a thin laptop.
• Heatsink: confirm whether your motherboard or console needs a separate heatsink.
• PCIe generation: check whether your system supports Gen4 to get the rated speed.
• Capacity: pick a size with room for your library, since games keep getting larger.
• Backups: copy important data before swapping drives.

The short version

• A PCIe Gen4 x4, NVMe 1.4 M.2 SSD rated at up to 5200 MB/s, sold from 500GB to 4TB.
• Graphene heat sticker for PS5 and PC use.
• Compatible with the PS5, desktops and laptops, according to fanxiang.
• Five-year after-sales service and lifetime technical support.

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