QNAP TS-431P3-4G 4-Bay 2.5GbE Home NAS — main product image

QNAP

QNAP TS-431P3-4G 4-Bay 2.5GbE Home NAS

Name: QNAP TS-431P3-4G 4-Bay 2.5GbE Home NAS
Brand: QNAP
SKU: TS-431P3-4G

★★★★★4.4 (51 reviews)

USB 3.2

A 4-bay NAS with 2.5GbE networking and quad-core power for fast, secure home and office storage.

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Overview

The QNAP TS-431P3-4G is a 4-bay network attached storage device built around an Annapurna Labs Alpine AL-314 quad-core 1.7GHz ARM processor and 4GB of DDR3L RAM, upgradeable to 8GB. Its standout feature is the dedicated 2.5GbE RJ45 port, which provides up to 2.5 times the bandwidth of conventional gigabit Ethernet — a meaningful improvement when transferring large files, streaming media to multiple clients, or running nightly backups across the network. A secondary 1GbE port is also included for failover or network segmentation.

With four 3.5-inch SATA bays supporting RAID 0, 1, 5, 6, 10, and JBOD configurations, the TS-431P3 can be tailored for maximum capacity, redundancy, or a balance of both. Data protection extends beyond RAID with AES 256-bit volume encryption and snapshot support, enabling point-in-time recovery from accidental deletion or ransomware. Three USB 3.2 Gen1 ports round out the connectivity, allowing direct backup from external drives. Running QNAP's QTS operating system, the unit supports a broad app ecosystem covering everything from file synchronization and multimedia serving to container-based applications, making it a capable and expandable hub for home or small office storage needs.

Key Features

Annapurna Labs AL-314 Quad-core 1.7GHz processor

SIngle-port 2.5GbE

SIngle-port 1GbE

3 X USB 3.2 Gen1 ports

2GB SODIMM DDR3L Memory (Max 8GB)

4 x 3.5-inch SATA 6Gb/s, 3Gb/s (Diskless)

Specifications

Brand

QNAP

Model

TS-431P3-4G

Processor

Annapurna Labs Alpine AL-314 Quad-core 1.7GHz

Memory

4GB DDR3L SODIMM (Max 8GB)

Drive Bays

4 x 3.5-inch SATA 6Gb/s, 3Gb/s

Drives Included

Diskless

Network Ports

1 x 2.5GbE RJ45, 1 x 1GbE RJ45

USB Ports

3 x USB 3.2 Gen1

Encryption

AES 256-bit

Pros & Cons

👍 Pros

Built-in 2.5GbE port delivers faster-than-gigabit transfer speeds without requiring a network card upgrade.
Four drive bays with multiple RAID options offer flexible storage expansion up to high capacities.
AES 256-bit encryption and snapshot protection provide strong data security and recovery options.
Quad-core 1.7GHz processor handles simultaneous file serving, backups, and media streaming reliably.
Three USB 3.2 Gen1 ports allow easy external storage expansion and one-touch backup from USB devices.

👎 Cons

Ships diskless, so the total cost increases significantly once drives are purchased separately.
DDR3L memory is an older standard, and the 8GB maximum may limit performance for demanding applications.
Only one 2.5GbE port means you cannot aggregate faster links without additional adapters.
The Annapurna Labs processor is adequate for file serving but may struggle with real-time transcoding of high-bitrate video.
Fan noise can be noticeable in a quiet home environment during sustained drive activity.

Frequently Asked Questions

Does the QNAP TS-431P3 come with hard drives included?

No, the TS-431P3-4G is sold diskless. You purchase and install your own 3.5-inch SATA drives, which gives you flexibility to choose capacity and brand.

Can the RAM be upgraded beyond 4GB?

Yes, the DDR3L SODIMM slot supports up to 8GB, allowing you to increase memory for heavier multitasking or more simultaneous users.

What RAID configurations does this NAS support?

The TS-431P3 supports RAID 0, 1, 5, 6, 10, and JBOD, letting you balance performance, capacity, and redundancy across its four bays.

How much faster is the 2.5GbE port compared to standard Gigabit Ethernet?

The 2.5GbE port delivers up to 2.5 times the throughput of a standard 1GbE connection, significantly improving large file transfers and multimedia streaming.

Does this NAS support data encryption?

Yes, it provides AES 256-bit volume-level encryption to protect stored data, along with snapshot-based protection for rollback and recovery.