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Team Group EX2 SATA SSD Review: Affordable But Missing

Posted on April 29, 2022 by admin

Today’s best Team Group EX2 SATA SSD (1TB) deals

Newegg

Team Group’s EX2 is an inexpensive SATA SSD composed of a mix of both new and old hardware that is very similar to the Crucial BX500. Combining both TLC flash and Silicon Motion’s somewhat dated DRAMless SM2258XT SSD controller, Team Group has created an inexpensive SSD that delivers mixed signals. On the one hand, the BiCS4 96-layer TLC flash is generally more reliable than QLC, but on the other, the dated controller allows for inconsistent performance under mixed and write-heavy workloads.

Team Group’s EX2 wouldn’t be our first choice when upgrading our own systems, especially since its sustained write performance can drop to slower speeds than the Crucial BX500, and even HDDs. It’s not much cheaper than competitors, but if you’re pinching pennies and you’re okay with the performance compromises, the EX2 might be worth considering if you don’t write a lot of data to your drive and can crash it for a while. very low price.

Specifications:

Product EX2 512GB EX2 1TB EX2 2TB
Prices $53.99 $89.99 $189.99
Capacity (User / Raw) 500GB / 512GB 1000GB / 1024GB 2000GB / 2048GB
form factor 2.5 “SATA” 2.5 “SATA” 2.5 “SATA”
Interface / Protocol SATA 6 Gbps / AHCI SATA 6 Gbps / AHCI SATA 6 Gbps / AHCI
controller Silicon movement SM2258XT Silicon movement SM2258XT Silicon movement SM2258XT
drama DRAM-less DRAM-less DRAM-less
Memory SanDisk 96L TLC SanDisk 96L TLC SanDisk 96L TLC
Sequential Read 550MBps 550MBps 550MBps
Consecutive writing 520MBps 520MBps 520MBps
Security AES 256-bit encryption AES 256-bit encryption AES 256-bit encryption
Endurance (TBW) 400TB 800TB 1600 TB
part number T253E2512G0C101 T253E2001T0C101 T253E2002T0C101
Guarantee 3 years 3 years 3 years
  • Team Group EX2 SATA SSD (1TB) at Amazon for $79.99

The EX2 comes in three capacities of 512 GB, 1 TB and 2 TB, priced at about $0.0-$0.11 per gigabyte. Team Group rates the EX2 to achieve sequential read and write speeds of up to 550/520 MBps, but unlike most SSDs, it lacks performance ratings for arbitrary workloads. Team Group’s EX2 is backed by a three-year warranty and comes with solid endurance.

The drive uses Silicon Motion’s proprietary NANDXtend ECC, which uses 1 KB codeword LDPC and RAID, along with SRAM ECC and end-to-end data path protection to ensure data integrity. The EX2 can handle up to 400TB of write capacity per 512GB capacity within the warranty period, which is much higher than most of its QLC-based competitors.

A closer look

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(Image credit: Tom’s hardwareI

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(Image credit: Tom’s hardwareI

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(Image credit: Tom’s hardwareI

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A large sticker with a brushed metal finish covers the top of the Team Group EX2 and depending on your preference, the look can be an advantage or a disadvantage. We prefer the more refined look of Samsung’s SATA SSDs and the like over the EX2. The EX2 comes in a 2.5-inch 7mm form factor and is largely made of plastic to cut costs. Internally, the PCB snaps into the housing and the housing snaps together without the need for screws.

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(Image credit: Tom’s hardwareI

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(Image credit: Tom’s hardwareI

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Team Group’s EX2 uses a Silicon Motion SM2258XT SATA 6Gbps SSD controller to manage the flash. It is an older SATA controller based on a single 32-bit ARC CPU and manufactured on a low power 40nm process node for cost effectiveness.

The drive also has a DRAM-less architecture, meaning that instead of using a fast DRAM buffer space to update the FTL map table, the drive updates and retrieves LBA metadata on the much slower NAND. Unlike NVMe SSDs, SATA SSDs cannot use a Host Memory Buffer (HMB) to use the host system’s DRAM as a cache. However, the EX2 does support Trim and SMART data reporting.

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(Image credit: Tom’s hardwareI

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(Image credit: Tom’s hardwareI

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This four-channel controller is paired with four SanDisk BiCS4 96L TLC NAND packs, two on each side of the PCB. This flash runs with Toggle DDR3.0 speeds of up to 800 MTps in a dual plane configuration (doubling the performance over a single plane) and narrowly powering 1.8V. Each pack contains four 512Gb NAND dies, for a total of sixteen dies.

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