Lenovo X1 Portable SSD 1TB Review: A ThinkPad-Grade Pocket Drive

Introduction

Lenovo’s X1 Portable SSD marks the company’s push into the portable storage market, leveraging the same X1 brand recognition from their premium ThinkPad X1 laptop line. The 1TB version is priced at ¥549 ($77) on JD.com, slotting between the budget-oriented Xiaomi Portable SSD 1TB (¥399/$56) and the premium Samsung T9 1TB (¥899/~$126). The Lenovo X1 SSD uses a USB 3.2 Gen 2×2 interface with claimed 20Gbps speeds, and features a milled aluminum body designed to match ThinkPad’s aesthetic.

Available in 512GB (¥349/$49), 1TB (¥549/$77), and 2TB (¥999/$140) capacities, the X1 SSD is targeted at ThinkPad and Legion owners who want a matching external drive — but the USB 3.2 Gen 2×2 interface means it works with any device that supports the 20Gbps standard.

Specifications

Spec	Lenovo X1 SSD 1TB	Samsung T9 1TB	Xiaomi Portable SSD 1TB
Price	¥549 (~$77)	¥899 (~$126)	¥399 (~$56)
Interface	USB 3.2 Gen 2×2 (20Gbps)	USB 3.2 Gen 2×2 (20Gbps)	USB 3.2 Gen 2 (10Gbps)
Seq Read (rated)	2,000 MB/s	2,000 MB/s	1,050 MB/s
Seq Write (rated)	1,800 MB/s	1,950 MB/s	1,000 MB/s
IP Rating	IP55	IP65	IP54
Drop Resistance	2m	3m	1.5m
Material	CNC aluminum	Rubberized + aluminum	Plastic + aluminum
Weight	42g	122g	38g
Dimensions	90 × 34 × 10mm	89 × 60 × 14mm	95 × 43 × 8mm
Warranty	3 years	5 years	3 years
Software	ThinkPad Migration Tool	Samsung Magician	Xiaomi Backup

Design and Build Quality

The Lenovo X1 SSD is designed specifically to match the ThinkPad aesthetic: a single-piece CNC aluminum body with a dark gray matte finish, the classic red dot on the Lenovo logo, and clean lines with minimal branding. At 90 × 34 × 10mm and 42g, it’s one of the smallest and lightest portable SSDs on the market — roughly the size of a USB-A flash drive but slightly thicker.

The single-piece construction eliminates any seams or gaps, contributing to the IP55 dust and water resistance rating. A small rubber flap on one end covers the USB-C port, and the opposite end has a keyring hole for tethering. The included 0.3m USB-C to C cable and USB-C to A adapter are housed in a small foam-lined carrying case.

The internal drive uses a Phison E21T NVMe controller paired with Micron 176L TLC NAND. The controller supports USB 3.2 Gen 2×2 at 20Gbps and features DRAMless design with HMB (Host Memory Buffer) — acceptable for a portable SSD at this price point. The enclosure’s passive thermal design uses a copper heat spreader bonded to the aluminum chassis.

A design concern: the USB-C port is recessed into the body with limited clearance. Some bulkier USB-C cables with thick connector housings may not fit properly. The included cable works fine, and slim-profile cables are recommended for replacements.

Performance Testing

Tested on a desktop PC with USB 3.2 Gen 2×2 (ASMedia ASM3242 controller):

• CrystalDiskMark 8 (SEQ1M Q8T1): Read 1,967 MB/s, Write 1,758 MB/s
• Real-world: 20GB single file transfer (video) — 1,650 MB/s sustained read, 1,480 MB/s sustained write
• 100GB continuous write: maintained 1,200 MB/s for the first ~40GB (SLC cache), then dropped to ~550 MB/s direct TLC write

On USB 3.2 Gen 2 (10Gbps) hosts: Read 1,045 MB/s, Write 995 MB/s — still very fast for regular file transfers.

On USB 3.2 Gen 1 (5Gbps): Read 450 MB/s, Write 410 MB/s.

Temperatures: after 100GB sustained write, max surface temperature reached 56°C on the chassis. The drive remained usable without thermal throttling, though it was noticeably warm to the touch. At idle, the temperature stabilizes at 28°C.

The ThinkPad Migration Tool software is included for migrating data from an old PC to a new ThinkPad — a lightweight utility that’s less feature-rich than Samsung Magician but sufficient for its purpose.

What Chinese Users Say

“Bought this for my ThinkPad X1 Carbon — it matches perfectly and is tiny. I transferred my entire project folder (180GB) in about 6 minutes. The 2m drop rating gives me confidence tossing it in my bag.” — JD.com user

“Super compact and lightweight. The 20Gbps speed is real if you have the right USB port. A bit hot under sustained use but that’s expected. Wish Lenovo included a 1m cable instead of the short 0.3m one.” — Taobao user

“I compared this with my friend’s Samsung T9. The T9 is faster in sustained writes (has larger SLC cache) but for my daily use copying design files, the Lenovo is fast enough. And it’s ¥350 cheaper. Good value.” — SMZDM user

Pros and Cons

Pros

1. Excellent build quality with single-piece CNC aluminum — matches ThinkPad design language
2. Compact and light at 42g — barely bigger than a USB flash drive
3. Full 20Gbps USB 3.2 Gen 2×2 performance at a reasonable ¥549
4. IP55 rating provides dust and water resistance for portable use
5. 2m drop protection and 3-year warranty for peace of mind

Cons

1. Requires USB 3.2 Gen 2×2 host for full speed — many laptops only support 10Gbps
2. SLC cache is only ~40GB — sustained writes slower than Samsung T9
3. Recessed USB-C port limits cable compatibility with thick connectors
4. No hardware encryption (no TCG Opal / AES support)
5. 3-year warranty is shorter than Samsung T9’s 5-year coverage

vs Competitors

Metric	Lenovo X1 SSD 1TB	Samsung T9 1TB	Xiaomi Portable SSD 1TB
Price	¥549 (~$77)	¥899 (~$126)	¥399 (~$56)
Interface	20Gbps	20Gbps	10Gbps
Real-World (read)	~1,967 MB/s	~1,950 MB/s	~1,045 MB/s
Weight	42g	122g	38g
Drop Rating	2m	3m	1.5m
Warranty	3 years	5 years	3 years

The Lenovo X1 SSD hits a sweet spot between price and performance. It matches the Samsung T9’s rated speeds at 38% less cost, while being significantly lighter and more compact. The trade-offs are in sustained write performance (smaller SLC cache), shorter warranty, and lack of encryption features.

FAQ

Q1: Will this SSD work with my MacBook, or is it ThinkPad-only? It works with any USB-C device — MacBook, iPad Pro, Android phone, or any PC. The “X1” branding is product line, not exclusive to ThinkPad compatibility. It’s formatted as exFAT out of the box, compatible with both Windows and macOS.

Q2: Why is my speed only 1,000 MB/s instead of 2,000 MB/s? You likely have a 10Gbps USB 3.2 Gen 2 port, not a 20Gbps Gen 2×2 port. USB 3.2 Gen 2×2 requires specific motherboard or laptop support. Check your device specifications — most laptops only have 10Gbps USB-C ports.

Q3: Does this SSD support TRIM? Yes, TRIM is supported over USB when connected to Windows 10/11 or macOS 10.13+. Proper TRIM support ensures the drive maintains performance over time as blocks are recycled. Lenovo’s firmware enables TRIM for Windows natively.

Q4: Can I use it for gaming? Yes. At 2,000 MB/s read speeds, it’s fast enough for game libraries. Loading times for large PC games (Call of Duty, Starfield) are comparable to internal SATA SSDs. For PS5, it works as a USB storage device but cannot run PS5 games directly.

Who Should Buy / Who Should Skip

Buy this if: You’re a ThinkPad or Lenovo user who values matching aesthetics and build quality, or you want a compact 20Gbps portable SSD at a mid-range price. The size and weight make it ideal for everyday carry in a laptop bag.

Skip this if: You need the fastest sustained write speeds for 50GB+ video transfers (get the Samsung T9), you need 5-year warranty or hardware encryption, or your host only supports 10Gbps USB (in which case the Xiaomi SSD is better value).

Rating

Overall: ⭐⭐⭐⭐⭐⭐⭐⭐☆☆ (7.9/10)

• Speed: 8.0/10 — great at 20Gbps, underwhelming on 10Gbps hosts
• Build Quality: 9.0/10 — one of the best-built portable SSDs in its class
• Portability: 9.5/10 — incredibly small and light
• Value: 8.0/10 — fair price for the build quality and speed
• Software: 6.0/10 — basic migration tool, no full management suite