Lexar NM790 with Heatsink 4TB SSD: Special Sale with 27,000 JPY Discount, Now 72,800 JPY!

Lexar NM790 with Heatsink 4TB: Special Sale Now On

Lexar has announced a special limited-stock sale for its NM790 with Heatsink 4TB PCIe Gen4 NVMe SSD (model: LNM790X004T-RN9NG). The price has been reduced by 27,000 JPY, from 99,800 JPY to 72,800 JPY, representing approximately a 27% discount. This offer is available on Rakuten and Yahoo! Shopping while supplies last.

The Lexar NM790 with Heatsink 4TB is designed for high performance, boasting sequential read speeds of up to 7,400MB/s and sequential write speeds of up to 6,500MB/s. Its integrated heatsink makes it a suitable choice for demanding applications such as gaming PCs, creative workloads, and expanding storage for PlayStation 5 consoles.

Market research firm TrendForce has indicated a continuous rise in NAND Flash contract prices throughout 2026, with a projected 10-15% increase in Q3 (July-September) compared to the previous quarter. A report on August 18 further noted ongoing supply shortages in the NAND Flash market, driven by strong demand for AI servers, particularly enterprise SSDs. In this context, securing a large-capacity SSD like the 4TB NM790 during this sale could be a practical choice for users anticipating significant storage needs for games or video/photo data.

Sale Details

• Product: Lexar NM790 with Heatsink 4TB (LNM790X004T-RN9NG)

• Price: 99,800 JPY → 72,800 JPY (27,000 JPY OFF / approx. 27% OFF)

• Sale Period: While supplies last

• Availability: Rakuten and Yahoo! Shopping

Purchase Links:

• Rakuten: <https://item.rakuten.co.jp/fastonline/lnm790x004t-rn9ng/>

• Yahoo! Shopping: <https://store.shopping.yahoo.co.jp/fastonline/lnm790x004t-rn9ng.html>

Beyond simply storing more data, a 4TB SSD can reduce the need for frequent data organization, game uninstallation, transfers to other drives, or future SSD purchases and replacements. This limited-stock sale presents an opportunity for users to secure ample storage capacity for several years to come.

Uncompromised Speed with 4TB Capacity

The Lexar NM790 4TB is not merely a high-capacity storage device. Utilizing a PCIe Gen4 x4 interface, the 4TB model delivers maximum sequential read speeds of 7,400MB/s and sequential write speeds of 6,500MB/s. Random read/write performance for the 4TB model is rated at up to 900K IOPS. This combination addresses both the demand for high speed and large capacity in a single solution, making it suitable for gaming PCs where multiple large games are installed, as well as for video editing, photo editing, and other creative tasks that involve frequent storage access.

Durability for Long-Term Use

For an SSD of this capacity, long-term reliability is crucial. The NM790 series incorporates 3D TLC NAND. The 4TB model has a Total Bytes Written (TBW) rating of 3,000 TBW, an MTBF (Mean Time Between Failures) of 1.5 million hours, and comes with a 5-year limited warranty. These specifications make the 4TB NM790 a viable option for a primary storage drive that can be relied upon for several years, consolidating games, work files, photos, and videos onto a single, high-speed drive.

Advanced Technology for Performance and Efficiency

The NM790 features Host Memory Buffer (HMB) 3.0 and Dynamic SLC Cache. HMB allows the SSD to utilize a portion of the PC’s system memory, which, when combined with Dynamic SLC Cache, supports faster data access. Lexar reports that the NM790 achieves up to 40% lower power consumption compared to PCIe Gen4 SSDs with DRAM cache in internal comparisons. This design approach indicates a focus on not just maximum transfer speed, but also on power efficiency and thermal management for high-speed Gen4 SSD operation.

Integrated Heatsink Design: A Thoughtful 9.7mm Thickness

The LNM790X004T-RN9NG model comes with a pre-installed heatsink. The total dimensions with the heatsink are 80 × 24 × 9.7mm, with a weight of approximately 48.6g. The 9.7mm thickness is notable, indicating that the heatsink design allocates substantial space for heat dissipation, especially when compared to the non-heatsink NM790 (80 × 22 × 2.45mm, 6g).

While SSD cooling performance depends on multiple factors (material, fin shape, surface area, contact with SSD, thermal pads, airflow, and SSD’s power consumption), the relatively generous thickness suggests a design prioritizing heat dissipation within compatible dimensions. Comparing it to other leading PCIe Gen4 SSDs with heatsinks:

Note: These are nominal outer dimensions and do not directly indicate the superiority of cooling performance based solely on thickness.

The 9.7mm thickness of the NM790 with Heatsink is greater than that of the Samsung 990 PRO with Heatsink (max 8.2mm) and WD_BLACK SN850X with Heatsink (8.8mm), suggesting a design that allows for relatively more robust heat dissipation while remaining within PlayStation 5 compatibility limits. However, it is not the thickest on the market, as models like the FireCuda 530 4TB with Heatsink exceed 11mm. The key is to provide an effective cooling solution while maintaining necessary compatibility, which the NM790 with Heatsink achieves by integrating a cooling structure from the outset.

High-speed NVMe SSDs can experience performance throttling under prolonged high load if temperatures rise. For PCIe Gen4 SSDs in the 7,000MB/s class, tasks such as continuous large file transfers, game installations, or video production can lead to sustained high loads. A heatsink is therefore not just an aesthetic component; it plays a critical role in absorbing and dissipating heat from the SSD to maintain high performance. The NM790 with Heatsink provides this cooling mechanism integrated upon purchase. For PCs where the motherboard’s M.2 slot does not include a heatsink, this integrated solution offers a clear advantage. Users should consult their motherboard’s manual for proper installation and avoid stacking heatsinks.

Ready for PlayStation 5 Expansion

Another significant application for the NM790 with Heatsink is the PlayStation 5. Sony Interactive Entertainment specifies that M.2 SSDs for PS5 must be PCIe Gen4 x4 NVMe SSDs with capacities between 250GB and 8TB, and a recommended sequential read speed of 5,500MB/s or higher. The NM790 4TB, with its maximum read speed of 7,400MB/s, exceeds this recommendation.

Crucially, the PS5 requires an effective heat dissipation mechanism for the SSD. The dimensions for the SSD, including any cooling structure, must be less than 25mm in width and 11.25mm in thickness. The NM790 with Heatsink measures 24mm in width and 9.7mm in thickness, fitting comfortably within the PS5’s dimensional requirements while providing substantial cooling.

Clear Benefits for PS5 Users:

Users do not need to search for a separate heatsink, apply thermal pads, or perform any additional assembly on the SSD itself. The NM790 with Heatsink is ready for direct installation into the M.2 slot. When installing a non-heatsink M.2 SSD into a PS5, users would need to acquire a compatible cooling solution separately, which involves checking for PS5 compatibility, ensuring it’s not too thick, and correctly attaching thermal pads. The NM790 with Heatsink eliminates these extra steps, simplifying the expansion process, especially for first-time PS5 SSD installers. While removing the PS5 cover, installing and securing the SSD, and formatting it are still necessary, the absence of additional SSD-side preparation is a clear advantage.

4TB: A Clear Advantage for PS5

With a compatible M.2 SSD, PS5 users can store PS5 and PS4 games, as well as media apps. PS5 games can be launched directly from the expanded M.2 SSD. While USB external storage can save PS5 games, they must be copied back to the console’s internal storage or an M.2 SSD to be played. For users who frequently manage storage by deleting games they’ve finished, re-downloading them later, or checking free space before installing new titles, upgrading to 4TB can significantly change their daily experience. Assuming games are around 100GB, a 4TB drive could theoretically hold dozens of titles, providing ample room to keep games installed even if not actively playing them. This allows for a more flexible approach: instead of only keeping currently played games, users can retain games they might play again.

Beyond Gaming: Versatile 4TB Applications

The benefits of 4TB extend beyond gaming. The volume of data handled by PCs continues to grow, including high-resolution RAW data from digital cameras, 4K video footage, cache and project data for Adobe applications, and local data for AI-related applications. For instance, in video editing, working directly from a fast internal NVMe SSD with project materials is often more efficient than frequently moving files to external storage. Photographers can consolidate catalogs, RAW data, and exported files onto a single high-speed SSD, reducing the need for meticulous capacity allocation. Furthermore, in compact PCs or Mini-ITX environments where M.2 slot availability is limited, securing a large capacity in a single slot is a significant advantage. This allows users to reserve empty slots for future expansion while ensuring 4TB of primary storage.

The All-in-One Solution: 4TB + Speed + Cooling

The Lexar NM790 with Heatsink 4TB is distinguished not by just its large capacity or speed, but by integrating multiple critical features: 4TB capacity, 7,400MB/s PCIe Gen4 performance, 3D TLC NAND, 3,000 TBW durability, HMB 3.0 + Dynamic SLC Cache, an integrated heatsink, and PS5-compatible dimensions. This combination makes it a versatile large-capacity, high-speed storage solution for PCs, from gaming to creative work, and a straightforward 4TB storage expansion for PS5 without the need for a separate heatsink. Its adaptability across different uses is a major advantage for long-term ownership of a large-capacity SSD.

Limited Stock Sale: Seize the Opportunity

The Lexar NM790 with Heatsink 4TB is not a new product, but this limited-stock sale, reducing the price from 99,800 JPY to 72,800 JPY, makes it a highly attractive option for users considering a 4TB Gen4 SSD. With market analyses, such as the TrendForce report on August 18, indicating ongoing NAND Flash supply shortages driven by AI server demand and limited new production capacity, leading to rising average selling prices, considering future storage needs now is prudent. If anticipating large files from games, 4K videos, or RAW photos, securing 4TB upfront can provide long-term relief from storage concerns. This sale is available while supplies last. Interested buyers are encouraged to check the product pages on Rakuten or Yahoo! Shopping.

Product Overview

Actual transfer speeds may vary depending on the operating environment. When installing in a PC, please check the space around the M.2 slot and compatible standards. For PS5 installation, please follow the official PlayStation M.2 SSD installation guide.

About Lexar and Suneast Electronics Co., Ltd.

Lexar is a global brand for memory cards, USB flash drives, portable storage, SSDs, and memory products, offering storage solutions for a wide range of digital lifestyles including photography, video, gaming, mobile, business, and personal backup. Suneast Electronics Co., Ltd. is a distributor of storage products such as SSDs, memory cards, USB memory, and PC peripherals. As the official general agent for Lexar products in Japan, Suneast Electronics actively promotes Lexar products in the Japanese market.

Contact Information:
Suneast Electronics Co., Ltd.
E-mail: info@suneast.co.jp

Important Notes:

• This release is a sales announcement for Japan by Suneast Electronics Co., Ltd.

• Actual performance may vary depending on the equipment used, memory configuration, OS, software, temperature, and other operating conditions.

• Product specifications, capacity, model numbers, sales prices, stock status, and retailers are subject to change without notice.

• The content published reflects information as of the announcement date.