What launched
ASCII.jp reported the launch on October 9, 2026. Sofmap's own listings give the same release date and show six models. Those are three memory and storage configurations, each in black or white. Every model lists Windows 11 Home, the RTX 5050 and the Ryzen 7 5700X.
Sofmap's listed prices include tax:
| Configuration | Price (JPY, tax included) |
|---|---|
| 16GB RAM / 500GB SSD | ¥169,800 |
| 16GB RAM / 1TB SSD | ¥179,800 |
| 32GB RAM / 1TB SSD | ¥199,800 |
Black and white versions cost the same. Sofmap marks the machines as quantity-limited. When the listings were captured they showed as in stock, with usual dispatch within 24 hours. The listing also shows free shipping for most regions and 1% store points. Stock and prices can change, and these are Japanese retail prices only.
The case: what is actually claimed
The case combines a flat steel front panel with a tempered glass side panel. The side panel is magnetic and comes off without tools, which makes dust checks and memory upgrades easier. Cooling is two front fans and one rear fan. The front panel has intake slits along its side so air can get in despite the flat face. The power switch and USB ports sit on top of the case. Sofmap says this helps when the PC sits on the floor or under a desk.
Neither ASCII nor Sofmap provides noise, temperature or airflow measurements. Treat the cooling design as a description of the hardware, not a tested result.
The choice between the three configurations
The CPU and GPU are the same in all three. The extra money buys one of two things:
- ¥10,000 more gets you 1TB of storage instead of 500GB.
- A further ¥20,000 gets you 32GB of memory instead of 16GB.
If you install big modern games, 500GB fills up quickly once Windows and a few titles are on it. That is general PC knowledge, not a claim from the listings. Sofmap's own FAQ on the product page says 16GB is the minimum for current gaming PCs and 32GB or more is better. It also says wired connections tend to be more stable than Wi-Fi for online games.
Upgrade limits
The maker's own listing is the useful cross-check here. The OZgaming web shop's page for the S Series gives a more detailed parts list for a 16GB/1TB model:
- An MSI B550M-A PRO board with one empty memory slot and no free M.2 slots.
- A single 16GB DDR4-3200 module.
- A 650W 80 PLUS Bronze power supply and the AMD stock cooler.
- Three DisplayPort outputs and one HDMI output on the GPU.
- Dimensions of 225 × 431 × 400 mm (W × H × D) and a weight of about 15kg.
- A one-year warranty.
Taken together, this means the magnetic side panel makes things easy to see, but the board limits what you can do. With one RAM module installed and one slot free, going from 16GB to 32GB means adding a second stick. With no free M.2 slot, more storage would have to come from some other route. The maker page doesn't say what that route is. These details come from one 16GB/1TB listing, so check the exact model before buying.
Two discrepancies to be aware of
- SSD generation. The OZgaming shop lists the 1TB drive as M.2 NVMe Gen3, rated at roughly 2000 MB/s read. I could not confirm the SSD generation from Sofmap's captured text. Don't assume Gen4 speeds.
- Price. The maker's shop page showed ¥154,800 for the 1TB model with a configuration selector. Sofmap lists the 16GB/1TB model at ¥179,800. The two pages were captured at different times and may reflect different configurations or promotions. Check the live price at both sellers before buying.
Peripherals and extras
Sofmap says gaming PCs may not include a keyboard or mouse, and it tells buyers to check the product specs. The product page FAQ also notes that Wi-Fi support varies by model. I couldn't find a Wi-Fi specification for the S Series, so assume wired Ethernet only until you confirm.
Performance
No benchmarks or game frame-rate tests for the S Series turned up in the sources. Online calculator sites suggest the Ryzen 7 5700X and RTX 5050 are well matched at 1080p and that the GPU becomes the limit at higher resolutions. Those are estimates, not testing of this machine, so treat them with caution.
Bottom line
The S Series is a straightforward 1080p-oriented prebuilt. Its good points are a tool-free glass side panel, easy-to-reach top I/O and a CPU that shouldn't hold back an RTX 5050. Its limits are a single-module RAM layout, no free M.2 slot on the model listed, and unconfirmed details such as SSD speed, Wi-Fi and what's in the box. If you're shopping, compare the 16GB/1TB model against the 32GB/1TB model first, because that ¥20,000 step is the biggest difference in the range. Also check the Sofmap and OZgaming prices against each other.