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Samsung Portable SSD T9 1TB (MU-PG1T0B)

Samsung Portable SSD T9 1TB (MU-PG1T0B)

By Samsung · External Ssds · Desk & Streaming Setup · More from Samsung

  • 1TB capacity
  • USB 3.2 Gen 2x2 interface
  • 2,000MB/s read and write
  • Dynamic Thermal Guard
  • Drop resistant up to 9.8 ft

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Problems, parts and running costs

Summary

A 20Gbps USB 3.2 Gen 2x2 portable SSD rated up to 2,000 MB/s read and 1,950 MB/s write, for anyone moving large files between machines. Check that your computer actually has a 20Gbps port before buying: on a Mac or a 10Gbps-only PC it falls back to T7-level speed.

Strengths

  • Real-world speed over a 20Gbps port: large-file transfers run roughly twice as fast as the T7 generation.
  • Compact, grippy, pocketable build that survives a drop in normal use.
  • AES 256-bit hardware encryption, managed through Samsung’s own software.
  • Five-year limited warranty, longer than the T7’s three-year coverage.
  • Both a USB-C and a USB-A cable are in the box.
  • The same line comes in 1TB, 2TB and 4TB if you outgrow this one.

Weaknesses

  • Only reaches its rated speed on a host with a USB 3.2 Gen 2x2 port; on a Mac or a 10Gbps PC it performs about like a T7.
  • The 1TB model’s SLC cache is only 22GB, so sustained writes larger than that slow sharply.
  • Runs warm during sustained transfers, and reports on how hot conflict.
  • The textured rubber finish collects dust and lint.
  • Some owners report random disconnects on particular USB-C 20Gbps ports.

Verified specifications

ModelMU-PG1T0B (1TB, black); US retail SKU MU-PG1T0B/AM.
Capacity1TB.
InterfaceUSB 3.2 Gen 2x2 (20Gbps), backward compatible with USB 3.2/3.1/3.0/2.0.
Sequential readup to 2,000 MB/s.
Sequential writeup to 1,950 MB/s for 1TB and 2TB; the 4TB is rated up to 2,000 MB/s.
SLC cache (TurboWrite)22GB on 1TB, 88GB on 2TB, 180GB on 4TB.
ProtocolNVMe over USB.
EncryptionAES 256-bit hardware encryption (XTS-AES), managed through Samsung software.
Drop resistanceup to 3 meters / 9.8 ft in an internal free-fall test; drop damage is not covered by warranty.
Water and dustno IP rating.
ThermalDynamic Thermal Guard with embedded phase-change material; Samsung states skin temperature stays below 60°C in controlled conditions per IEC 62368-1.
SoftwareSamsung Portable SSD 1.0 and Samsung Magician (Windows 7+, macOS 10.10+, Android Lollipop+).
Warrantyfive-year limited.
Powerbus-powered, as little as 2.5W (5V/0.5A); no external supply.
Dimensions88 x 60 x 14 mm (3.46 x 2.36 x 0.55 in).
Weight122 g (4.3 oz).
Materialsblack rubberized outer coating over an internal metal shell.
Formatships exFAT for cross-platform use.
In the boxdrive, USB-C to C cable and USB-C to A cable (about 0.45 m each), quick user manual and warranty statement.
Full research notes and sources

Speed and the 20Gbps catch

The T9 is Samsung’s first portable SSD with a USB 3.2 Gen 2x2 (20Gbps) interface, rated up to 2,000 MB/s sequential read and 1,950 MB/s sequential write. Those numbers need a host with a 20Gbps port, the included or an equivalent 20Gbps cable, and UASP enabled. On a normal 10Gbps port the drive is limited to roughly half that, and AppleInsider measured the T9 performing about the same as a T7 on a Mac because Macs do not support USB 3.2 Gen 2x2.

Independent testing puts it as fast but not class-leading. PCWorld called the 2TB drive “merely a middle-of-the-pack performer” among 20Gbps drives.

Sustained writes and the cache

The 1TB model’s TurboWrite SLC cache is about 22GB, against 88GB on the 2TB and 180GB on the 4TB, so a large sustained write slows once the cache fills. TechRadar’s advice is blunt: if you write large files to the T9, get the 4TB model. PCWorld’s 2TB sample still held about 900 MB/s on a 450GB write after the secondary cache was exhausted, and AppleInsider’s 4TB unit took 2:55 to move a 162GB folder where a T7 took 7:28. Owner threads on r/UsbCHardware describe the same collapse in harsher terms, with one drive dropping to 15 MB/s. Samsung does not publish a TBW endurance rating for the drive.

Heat, disconnects and upkeep

Sustained transfers warm the drive. PCWorld found it warm but “in no way uncomfortable to touch,” and Mac owners on r/mac report it running warm even at idle; ZDNet’s 2025 testing, in contrast, found “very little heat, even under heavy workloads.” The evidence conflicts and is probably workload-dependent, so treat warmth as normal rather than a fault. Samsung’s Dynamic Thermal Guard throttles the drive to hold surface temperature down.

The recurring caution signal is disconnection. Owners report the T9 dropping and reconnecting on certain USB-C 20Gbps ports: a desktop port in the Samsung Community thread, a front-panel port on an HP Pro Mini 400 G9 where it disconnected every 10 to 60 seconds until it was moved to a rear 10Gbps port, and a 2TB unit in r/techsupport. These look host- and port-specific rather than a drive defect; no failure rate has been published. Use the included cables, since Samsung warns that non-genuine cables can stop the drive being recognized or hurt performance, and update firmware through Samsung Magician. The drive is a sealed unit with no user-serviceable parts, and the LED is warranted for five years of typical use, defined as four hours a day at 40°C or below.

Is it worth it?

The T9 makes sense for anyone who has a 20Gbps port and wants a rugged, encrypted drive with a long warranty. Samsung’s US store listed the 1TB at $119.99 in October 2026, down from its $139.99 launch price (Samsung, October 2023), and the same line ran $239.99 for 2TB and $439.99 for 4TB at launch.

Which model this is

This page covers the Samsung Portable SSD T9 in 1TB, black, model MU-PG1T0B (US retail SKU MU-PG1T0B/AM). The T9 line launched in October 2023 in 1TB, 2TB and 4TB capacities. Samsung’s own business support pages list MU-PG1T0B under “T9 Shield Series,” which is a support-page naming inconsistency rather than a different product. Do not confuse the T9 with the slower T7 and T7 Shield, or with the rubber-armored T9 Shield. The US listing for this 1TB black model is ASIN B0CHFSWM2P.

Sources

Manufacturer:

Independent reviews:

Owner reports:

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