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Rectangular 2.5 inch SATA SSD in black metal casing with label showing model S101Q and capacity 4TB

FANXIANG

FANXIANG S101Q 4TB SATA internal SSD

SKU CH-XYJP-Y18PV

A 2.5-inch SATA solid-state drive storing 4 TB with 3D NAND QLC, up to 550 MB/s read and 490 MB/s write, 1280 TBW endurance and 1,500,000-hour MTBF for laptops and desktops

  • Total capacity4 TB
  • Sequential read speedUp to 550 MB/s
  • Sequential write speedUp to 490 MB/s
  • Interface typeSATA III
  • Form factor2.5 in (6.35 cm)
  • Product typeInternal Solid State Drive (SSD)

Capacity 4TB

  • Faster data transfers with up to 550 MB/s read and 490 MB/s write speeds
  • Quicker boot, app load and shutdown times versus a mechanical hard drive
  • 3D NAND QLC with SLC cache boosts responsiveness for everyday workloads
  • Built-in garbage collection, wear-levelling, ECC, TRIM and S.M.A.R.T. protect data integrity
  • SATA III 6 Gb/s interface works in laptops, desktops and all-in-ones running Windows, Linux or Mac OS

FANXIANG S101Q 4TB SATA SSD

The FANXIANG S101Q is a 2.5 inch internal solid state drive with a 4TB capacity. It uses a SATA III interface and 3D NAND QLC memory to deliver faster boot times and application loads than a mechanical hard drive. The 7mm height fits most laptops and desktops.

Thermals power and noise

With no moving parts the drive runs silently and draws little power during typical workloads. The operating range spans 0°C to 70°C so it stays within safe limits inside standard chassis airflow. No heatsink is fitted or required for normal use.

4TB capacity and 1280TBW endurance

The 4TB capacity provides ample space for large media libraries and backups. A 1280TBW rating and 1.5 million hour MTBF indicate the write endurance needed for heavy daily use. Sequential reads reach 550MBps and writes reach 490MBps.

How it compares

Measured against everything we stock in Internal NVMe & SATA SSDs, at today’s prices. Recalculated every night.

Price $268.99
Pricier than about 65% of the 1,994 comparable items (median $180.49).
Total capacity 4 TB
Higher than about 90% of the 1,368 comparable items (median 1 TB).
Sequential read speed Up to 550 MB/s
Lower than about 70% of the 1,180 comparable items (median 2,400 MB/s).
Price per TB $67.25 per TB
Cheaper than about 94% of the 1,362 comparable items (median $165.50 per TB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameFANXIANG
Product lineS101Q
Model nameS101Q
Part numberS101Q-4 TB
Total capacity4 TB
Product typeInternal Solid State Drive (SSD)
Intended useConsumer
Performance
Sequential read speedUp to 550 MB/s
Sequential write speedUp to 490 MB/s
Storage
NAND flash typeQLC
Write endurance1280 TB
Ports & slots
Interface typeSATA III
Size & build
Form factor2.5 in (6.35 cm)
Heat sinkWithout HeatSink
Overall height7 mm
Overall width70 mm
Product depth100 mm
Product weight45g
In the box
Included items1 × 2.5 in SATA SSD
Environment & compliance
Operating temperature range0 °C to 70 °C
Storage temperature range-25 °C to 85 °C
More details
Mean time between failures1,500,000 h

Other versions of this model

4 more in the same range

Questions about this item

How do I install the 2.5 inch SATA drive in a laptop, and what step is often missed?

Slide the drive into the 2.5 inch bay, connect the SATA data and power cables, then secure it with screws; the step often missed is enabling AHCI mode in the BIOS so the drive runs at full SATA III speed.

What maintenance will the QLC NAND need later, and when should I check it?

The QLC NAND relies on garbage collection, wear-levelling and TRIM to stay healthy; run a S.M.A.R.T. check once a year and keep at least 10 percent free space so background routines can work.

At what point does the 1280 TBW endurance limit appear during sustained writes?

After 1280 terabytes written the warranty ends; heavy workloads that constantly fill the SLC cache will hit that limit first, so monitor total bytes written in S.M.A.R.T. data.

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