Crucial T705 4TB

Name: Crucial T705 4TB
Brand: Crucial
SKU: 4504

Manufacturer: Crucial

The Crucial T705 4TB is a high-capacity M.2 solid-state drive built around the PCIe 5.0 interface, offering a substantial 4TB of internal storage for users who need both speed and space in a compact form factor. It runs on the Phison PS5026-E26 controller, which coordinates data flow across eight channels and is paired with a DRAM cache to support consistent performance across workloads.

On the performance side, the T705 4TB delivers sequential read speeds of 14,100 MB/s and sequential write speeds of 12,600 MB/s, while random read and write performance reaches 1,500,000 and 1,800,000 IOPS respectively. It uses TLC NAND storage, supports NVMe version 2, and offers 256-bit AES encryption. Reliability figures include an MTBF of 1.5 million hours and a terabytes written rating of 2,400, backed by a five-year warranty. The drive ships without an integrated heatsink or RGB lighting.

Pros

Sequential read and write speeds of 14,100 MB/s and 12,600 MB/s respectively indicate very fast sustained data transfer for an M.2 drive
Random write performance of 1,800,000 IOPS supports heavy workloads involving frequent small-block operations
A TBW rating of 2,400 reflects a high endurance ceiling for a consumer-grade SSD
The MTBF of 1.5 million hours points to strong long-term reliability expectations
A 5-year warranty provides extended coverage relative to many storage devices
256-bit AES encryption offers meaningful data security without requiring additional hardware

Cons

No integrated heatsink is included, which may require users to source one separately given the thermal demands of PCIe 5.0 speeds
TLC NAND, while common, offers lower write endurance per cell compared to SLC or MLC alternatives
The drive requires a PCIe 5.0-compatible motherboard slot to operate at its rated speeds, limiting compatibility with older systems

Who is this for?

This drive is well-matched to users who regularly handle large file transfers or data-intensive workloads, such as video editors working with high-resolution footage, software developers managing sizable codebases, or content creators who need both capacity and throughput from a single drive. The 4TB storage capacity combined with high random IOPS also makes it a strong fit for workstation environments where fast access to many files simultaneously is a regular requirement. Users who prioritize data security will also benefit from the built-in 256-bit AES encryption support without needing external solutions.

Who is this NOT for?

This drive is not a practical choice for users with systems that lack a PCIe 5.0-compatible M.2 slot, as the interface is required to reach its rated speeds and older platforms simply will not support it. Users who do not plan to add an aftermarket cooler should also be cautious, since the drive ships without an integrated heatsink and the thermal output associated with PCIe 5.0 performance can be significant. Additionally, those with only light, everyday storage needs — such as basic web browsing or document editing — would find the drive's capabilities well beyond what their workloads can realistically utilize.

Read speed:

sequential read speed	14100 MB/s
random read speed	1500000 IOPS

The Crucial T705 4TB reaches a sequential read speed of 14,100 MB/s, allowing large files to be read from the drive at a rapid, sustained pace. For workloads involving many small, scattered data requests, the drive is rated at 1,500,000 IOPS for random reads, reflecting strong throughput even under more demanding, non-sequential access patterns.

Write speed:

sequential write speed	12600 MB/s
random write speed	1800000 IOPS

When writing data sequentially, the Crucial T705 4TB sustains speeds of 12,600 MB/s, making it well-suited for transferring or saving large files at pace. On the random write side, the drive is rated at 1,800,000 IOPS, indicating strong responsiveness when handling the kind of fragmented, small-block write operations common in more intensive storage workloads.

Benchmarks:

General info:

type	M2
SSD cache	DRAM cache
Is an NVMe SSD	✓
NVMe version	2
internal storage	4000GB
controller	Phison PS5026-E26
SSD storage type	TLC
PCI Express (PCIe) version	5
Controller channels	8
Terabytes Written (TBW)	2400
MTBF	1.5million hours
warranty period	5 years
Has an integrated heatsink	✕
bits of encryption supported	256
has RGB lighting	✕

The Crucial T705 4TB is an M.2 NVMe SSD operating over a PCIe 5.0 interface and conforming to NVMe version 2, offering 4,000GB of internal storage built on TLC NAND. It is driven by the Phison PS5026-E26 controller, which works across 8 channels and is supported by a DRAM cache for stable data handling. Endurance is rated at 2,400 TBW with an MTBF of 1.5 million hours, and the drive comes with a 5-year warranty. It supports 256-bit AES encryption, while neither an integrated heatsink nor RGB lighting is included.

Final Verdict

The Crucial T705 4TB is a high-capacity M.2 NVMe SSD that makes a strong case for users operating in demanding storage environments, where both throughput and endurance genuinely matter. Its PCIe 5.0 interface paired with sequential read speeds of 14,100 MB/s and a 2,400 TBW rating position it firmly within the upper tier of consumer and prosumer storage solutions. The absence of an integrated heatsink and the strict platform requirements mean it rewards users who have already invested in a compatible, modern system — but for those who have, the Crucial T705 4TB delivers a well-rounded combination of speed, capacity, reliability, and hardware-level encryption that is difficult to dismiss.