Overview

Crucial's T700 series has arrived with the 4TB flagship model, and it's a monster. The Crucial T700 4TB Gen5 NVMe M.2 SSD leverages Micron's 232-layer TLC NAND and the full bandwidth of PCIe 5.0 x4 to deliver sequential reads up to 12,400MB/s and writes up to 11,800MB/s. Random access hits 1,500K IOPS, making it a dream for creative professionals and gamers using Microsoft DirectStorage. With 4TB of capacity, you can stash your entire AAA game library, 8K video projects, and heavy application files without juggling multiple drives. The T700 sits at the top of the Gen5 food chain, directly competing with other premium Gen5 NVMe drives like the Seagate FireCuda 540 and Solidigm P44 Pro. It's the ultimate storage upgrade for those who have already built a high-end PC around Intel's 13th-gen or AMD's Ryzen 7000 series with PCIe 5.0 support.

Compatibility Guide

The Crucial T700 is an M.2 2280 NVMe SSD requiring a PCIe 5.0 x4 slot (M Key) for full performance. It works in PCIe 4.0 and 3.0 slots, but speeds will drop to the respective generation limits. Ideal platforms include Intel Z690/Z790 and AMD X670/B650 motherboards with a Gen5 M.2 slot, preferably a CPU-attached one for lowest latency. Thermal management is critical. This variant (CT4000T700SSD3) ships without a heatsink, so you must use a motherboard heatsink or an aftermarket Gen5-rated cooler. The T700 runs hot—expect up to 80°C under sustained writes—and insufficient cooling will trigger thermal throttling. It's strictly for desktop systems with good airflow; thin laptops are a no-go.

Product Info

Released in mid-2023, the 4TB model carries an MSRP of around ¥125,800 ( Japan reference price, September 2026). Crucial backs it with a 5-year limited warranty, and the 4TB version has a TBW rating of 2,400TB— enough for typical consumer use for 6+ years under heavy daily writing. Positioned firmly in the high-end flagship segment, the T700 4TB delivers the fastest NVMe performance currently available. It's targeted at early adopters of the Gen5 ecosystem and professionals who need no-compromise throughput. For mainstream users, the price is high, but the per-GB cost (~¥31.5/GB) is reasonable for a 4TB Gen5 drive.

Best Use Cases

Video editors working with 8K RAW: The blistering sequential read speed slashes project load times. In DaVinci Resolve or Premiere Pro, scrubbing through timelines and importing large files becomes near-instant. You'll need a PCIe 5.0 workspace to justify the investment. Enthusiast gamers using DirectStorage: The drive reduces texture decompression overhead by up to 60% compared to Gen4 SSDs. For games that support DirectStorage (e.g., Forspoken, Ratchet & Clank), level loading is dramatically faster and open-world streaming smoother. But supported titles are still a niche, so this is partially a future-proofing move. * Data archivists needing one massive, fast drive: With 4TB, you can consolidate your game library and media files onto a single blazing-fast volume. However, if pure bulk storage is your goal, a QLC NVMe or even a HDD offers much better value per terabyte.

Things to Consider

First, you absolutely need a PCIe 5.0 x4 M.2 slot—most B650 boards don't have one, so check your motherboard spec. A CPU-attached Gen5 slot delivers full bandwidth, but be aware this may reduce GPU lanes on some chipsets (e.g., Z790 with two Gen5 M.2 slots drops x16 to x8). Consult your manual. Cooling is not optional. The 4TB model is double-sided and dissipates heat from both faces; a passive motherboard heatsink might not suffice under sustained loads. Investing in an active M.2 cooler (a small fan) is wise if you run prolonged writes. Competition includes the Solidigm P44 Pro (similar speed, slightly lower price) and Seagate FireCuda 540 (also Gen5). The Crucial uses Micron's own NAND, which often yields better firmware optimization. However, the TBW of 2,400TB is the same as many competitors and far below enterprise drives. For consumer use, it's fine, but if you need extreme endurance, look at higher-TBW enterprise models. ## FAQ
Q: Will the Crucial T700 4TB work in a PCIe 4.0 slot? A: Yes, but it will be capped at Gen4 speeds (~7,000MB/s). You still get 4TB of fast storage, but you're not getting your money's worth of Gen5 performance. Upgrade your platform if you want to unlock full speed. Q: Does this model come with a heatsink? A: No, the CT4000T700SSD3 is a bare drive. You must provide your own heatsink—either the one pre-installed on your motherboard's M.2 slot or a third-party Gen5 cooler. Good case airflow is also essential. Q: Is the T700 4TB suitable for a PlayStation 5? A: Yes, physically it fits, but PS5 only supports PCIe Gen4 x4. You'll lose all Gen5 advantages, and the drive may run hot inside the console's limited airflow. For the price, a Gen4 drive like the Crucial P5 Plus would be a more sensible choice.

Product Disclosure (Amazon)

  • Manufacturer: Crucial(クルーシャル)
  • Seller: ホッファー
  • Fulfilled by: ホッファー
  • ASIN: B0C3KKY6TL
  • Note: This article covers a manufacturer-made product based on Amazon listing details.