The QNAP TS-433-4G is the entry 4-bay: an ARM Cortex-A55 2.0GHz with 4GB fixed RAM, an NPU, one 2.5GbE and one Gigabit port, and no M.2 or PCIe. The QNAP TS-464-8G is the all-rounder: an Intel Celeron N5095 with 8GB (up to 16GB), two 2.5GbE ports, two M.2 NVMe slots, a PCIe slot for 10GbE, HDMI 2.1, QuTS hero support and a 3-year warranty. The QNAP TS-473A-8G is the power option: an AMD Ryzen V1500B 4-core/8-thread with 8GB (up to 64GB, ECC supported), two PCIe Gen 3 x4 slots and QTS or QuTS hero, but no built-in HDMI or transcoding graphics. The TS-462-4G sits between the TS-433 and TS-464.
Quick pick: home photo and file storage → TS-433-4G; most homes and small offices → TS-464-8G; virtual machines, ZFS and 10GbE → TS-473A-8G; need six bays → TS-664-8G or TS-673A-8G. ARC IP Networks is an authorised QNAP reseller and supplies genuine QNAP from Australian stock with a GST tax invoice.
QNAP 4-bay NAS at a glance
| Model | In one line | Best for |
|---|---|---|
| TS-433-4G | ARM 2.0GHz, 4GB fixed, NPU, 2.5GbE + Gigabit, 2-year warranty | Home and small office storage on a budget |
| TS-462-4G | Intel Celeron N4505 2-core, 4GB, 1 x 2.5GbE, 2 x M.2, PCIe, HDMI, 2-year warranty | Homes wanting M.2 and HDMI without the TS-464 |
| TS-464-8G | Intel Celeron N5095 4-core, 8GB, 2 x 2.5GbE, 2 x M.2, PCIe, HDMI 2.1, 3-year warranty | Most homes, home offices and small businesses |
| TS-473A-8G | AMD Ryzen V1500B 4C/8T, 8GB (max 64GB ECC), 2 x 2.5GbE, 2 x M.2, 2 x PCIe x4, 3-year warranty | Virtualisation, ZFS, 10GbE and GPU cards |
Summarised from QNAP's specifications for each model.
QNAP TS-433 vs TS-462 vs TS-464 vs TS-473A specifications
Every figure comes from QNAP's hardware specification table for the exact variant we sell: TS-433-4G, TS-462-4G, TS-464-8G and TS-473A-8G.
Swipe the table sideways to compare all models →
| Spec | TS-433-4G | TS-462-4G | TS-464-8G | TS-473A-8G |
|---|---|---|---|---|
| Processor | ARM Cortex-A55 4-core 2.0GHz | Intel Celeron N4505 2-core/2-thread, burst up to 2.9GHz | Intel Celeron N5095 4-core/4-thread, burst up to 2.9GHz | AMD Ryzen Embedded V1500B 4-core/8-thread 2.2GHz |
| Architecture | 64-bit ARM | 64-bit x86 | 64-bit x86 | 64-bit x86 |
| Graphics | Mali-G52 | Intel UHD Graphics | Intel UHD Graphics | Optional via a PCIe adapter |
| AI acceleration | NPU | Not listed | Not listed | Not listed |
| Memory | 4GB on board, not expandable | 4GB; 2 x SODIMM DDR4, max 16GB | 8GB SODIMM DDR4, max 16GB (2 x 8GB) | 8GB SODIMM DDR4, max 64GB (2 x 32GB), ECC supported |
| Drive bays | 4 x 3.5-inch SATA 6Gb/s | 4 x 3.5-inch SATA 6Gb/s | 4 x 3.5-inch SATA 6Gb/s | 4 x 3.5-inch SATA 6Gb/s |
| M.2 NVMe slots | None | 2 x M.2 2280 PCIe Gen 3 x1 | 2 x M.2 2280 PCIe Gen 3 x1 | 2 x M.2 2280 PCIe Gen 3 x1 |
| Network | 1 x 2.5GbE + 1 x Gigabit | 1 x 2.5GbE | 2 x 2.5GbE | 2 x 2.5GbE |
| PCIe slots | None | 1 x PCIe Gen 3 x2 | 1 x PCIe Gen 3 x2 | 2 x PCIe Gen 3 x4 |
| USB | 1 x USB 3.2 Gen 1, 2 x USB 2.0 | 2 x USB 3.2 Gen 2 (10Gbps), 2 x USB 2.0 | 2 x USB 3.2 Gen 2 (10Gbps), 2 x USB 2.0 | 3 x USB 3.2 Gen 2 (10Gbps) Type-A, 1 x USB 3.2 Gen 1 Type-C |
| HDMI output | None | Yes, 4K at 60Hz | HDMI 2.1, up to 4096 x 2160 at 60Hz | Optional via a PCIe adapter |
| Hardware transcoding | Yes | Yes | Yes | Optional via a PCIe adapter |
| Fan | 1 x 120mm | 1 x 120mm | 1 x 120mm | 1 x 120mm system, 1 x 60mm CPU |
| Power, typical (drives fitted) | 22.54 W | 32.4 W | 40.536 W | 29.792 W |
| Power supply | 65W adapter | 90W adapter | 90W adapter | 250W internal |
| Size (H x W x D) | 165 x 160.2 x 220.5 mm | 165 x 170 x 226.5 mm | 165 x 170 x 226.5 mm | 180.2 x 199.3 x 279.6 mm |
| Max. concurrent SMB connections | 200 | 1500 | 1500 | 2000 |
| Operating system | QTS 5 | QTS 5 | QTS 5; also supports QuTS hero | QTS or QuTS hero |
| Standard warranty | 2 years | 2 years | 3 years | 3 years |
Source: QNAP hardware specifications. Power figures are QNAP's, tested with all bays populated. All four accept 3.5-inch SATA hard drives and 2.5-inch SATA SSDs and ship without drives. "Not listed" means QNAP's table does not include the item.
Processor and memory: ARM, Celeron or Ryzen
TS-433-4G uses a 64-bit ARM Cortex-A55 quad-core at 2.0GHz with 4GB soldered to the board. It cannot be upgraded, and QNAP lists no M.2 or PCIe slots, so what you buy is what you keep. In return it is the lowest-power model here at 22.54 W typical, drives install without a screwdriver, and its NPU speeds up face recognition and photo classification in QuMagie.
TS-462-4G moves to x86 with a dual-core Intel Celeron N4505 (burst up to 2.9GHz), AES-NI encryption and an integrated Intel OpenVINO AI engine for image recognition, with M.2 and PCIe expansion. It has one 2.5GbE port.
TS-464-8G doubles the cores with a 4-core/4-thread Intel Celeron N5095 and ships with 8GB DDR4, upgradable to 16GB. It is the TS-462 with twice the cores, twice the memory and a second 2.5GbE port, plus a 3-year warranty instead of 2.
TS-473A-8G steps up to an AMD Ryzen Embedded V1500B with 4 cores and 8 threads at 2.2GHz and two SODIMM slots for up to 64GB (2 x 32GB). It supports ECC memory, which QNAP notes means removing the pre-installed module, because ECC and non-ECC modules cannot be mixed. That headroom suits virtual machines and QuTS hero.
Network: 2.5GbE now, 10GbE later
All four have at least one 2.5GbE port, which QNAP's TS-462 page notes works with existing CAT5e cabling. In QNAP's testing:
- TS-433 on one 2.5GbE port: 280 MB/s download and 202 MB/s upload in a Windows file transfer (RAID 5, SSD volume).
- TS-464 with both 2.5GbE ports trunked: 589 MB/s read and write; with a dual-port 10GbE card in its PCIe slot: 1647 MB/s read and 1632 MB/s write.
- TS-473A with two 10GbE ports added via PCIe: 2356 MB/s read and 1524 MB/s write in SMB sequential throughput.
The TS-433 has no PCIe slot, so it stays at 2.5GbE. The TS-462 and TS-464 take one 10GbE card; the TS-473A has two PCIe Gen 3 x4 slots, so it can take a 10GbE card and a QM2 or other card at the same time. To get these speeds your PCs and switch need matching ports: see our 2.5GbE NAS guide, QNAP switch guide and 10GbE network card guide.
M.2 SSD cache, PCIe and HDMI
The TS-462, TS-464 and TS-473A each have two M.2 2280 PCIe Gen 3 x1 slots for NVMe SSD caching or Qtier auto-tiering, which keeps the drive bays free for hard drives. The TS-433 has none. See SSD cache and M.2 on a NAS for when caching helps.
For media, the TS-462 and TS-464 have Intel UHD Graphics with hardware transcoding and an HDMI output, so the NAS can play 4K video straight to a TV; QNAP also lets you use the TS-464 like a PC with a keyboard, mouse and monitor through Virtualization Station. The TS-473A has no graphics, HDMI or hardware transcoding built in; QNAP offers those through a PCIe adapter, such as a low-profile graphics card that needs no power cable, which also enables GPU pass-through to virtual machines. If your main job is a home media library, the TS-464 is the better fit.
QTS or QuTS hero
The TS-433 and TS-462 run QTS 5. QNAP says the TS-464 also supports QuTS hero, and the TS-473A supports both QTS and QuTS hero. QuTS hero is QNAP's ZFS-based operating system, with end-to-end data integrity and inline deduplication, compression and compaction. QNAP lists its hardware requirements as at least 8GB RAM, at least 16GB for inline deduplication and 32GB recommended. The two systems use different file systems, so switching means backing up and removing all drives first. Our QTS vs QuTS hero guide explains which suits you.
Growing beyond four bays
Four bays in RAID 5 give you three drives of usable space with one-drive protection; see our RAID 1, 5, 6 and 10 guide. When that fills up, QNAP's TS-473A page lists two TR-004 enclosures or one 8-bay TL-D800S JBOD as expansion, and the TS-464 supports a TL-D1600S expansion unit. Our TR-004 vs TL series guide compares them. If you already know you need more bays, buy a 6-bay instead.
Step-ups: TS-664 and TS-673A 6-bay
The 6-bay versions keep the same platforms:
- TS-664-8G is a 6-bay TS-464: Intel Celeron N5095, 8GB (up to 16GB), two 2.5GbE, two M.2, one PCIe Gen 3 x2 slot, HDMI 2.1, QuTS hero support and a 3-year warranty. In QNAP's testing it reached 589 MB/s with both 2.5GbE ports trunked and 1644 MB/s read with a dual-port 10GbE card. It draws 44.02 W typical.
- TS-673A-8G is a 6-bay TS-473A: Ryzen V1500B 4-core/8-thread, 8GB (up to 64GB, ECC supported), two 2.5GbE, two M.2, two PCIe Gen 3 x4 slots, QTS or QuTS hero, and a 3-year warranty. It draws 45.898 W typical.
Six drives in RAID 6 survive two drive failures, which suits a growing business archive. TS-873A-8G adds eight bays on the same Ryzen platform. Our 2-bay vs 4-bay vs 6-bay guide helps size it, and the 3-2-1 backup rule still applies.
Which QNAP 4-bay NAS for which Australian buyer?
ARC IP Networks suggestions, based on QNAP's specifications above.
| You are | Choose | Why |
|---|---|---|
| A family consolidating photos, phone backups and PC backups | TS-433-4G | NPU for QuMagie, 2.5GbE, lowest power |
| A home with a 4K TV and a media library | TS-464-8G | HDMI 2.1 and hardware transcoding built in |
| A small office (accountants, real estate, allied health clinics) | TS-464-8G | Two 2.5GbE, M.2 cache, snapshots, 3-year warranty |
| An office keeping client records under the Privacy Act | TS-464-8G or TS-473A-8G | AES-NI encryption; QuTS hero for data integrity |
| An IT provider hosting virtual machines for a client | TS-473A-8G | 8 threads, up to 64GB ECC, two PCIe x4 slots |
| A video or design studio moving to 10GbE | TS-473A-8G | Two PCIe x4 slots for 10GbE plus a QM2 card |
| A business that will outgrow four drives within a year | TS-664-8G or TS-673A-8G | Six bays, RAID 6, same platforms |
Drives and bundles
These NAS ship without drives: use NAS-rated CMR drives from our best NAS hard drives guide, or see NAS bundles explained for TS-433, TS-464 and TS-473A bundles with Seagate IronWolf drives.
Why buy QNAP from ARC IP Networks
- Authorised QNAP reseller: genuine QNAP sourced through authorised Australian distribution, never grey import.
- Australian stock shipped Australia-wide.
- Manufacturer's warranty and local pre-sales help choosing bays, drives, networking and expansion.
- Every product page backed by QNAP's own specifications, with the exact warranty for each model.
- GST tax invoice on every order, with trade and project pricing for installers and integrators.
See the full range on our QNAP Australia hub, or read where to buy QNAP in Australia. Questions? Call 1300 100 440 or email info@arcip.com.au.
Shop QNAP 4-bay and 6-bay NAS
Live Australian pricing (inc. GST) and availability are on each product page.
4-bay: Celeron N5095, 8GB, 2 x 2.5GbE, 2 x M.2, PCIe, HDMI 2.1, 3-year warranty
4-bay: Ryzen V1500B 4C/8T, 8GB (64GB ECC), 2 x PCIe Gen 3 x4, QTS or QuTS hero
Common questions
Straight answers from the ARC IP Networks team. Last reviewed October 2026.
The TS-433 has an ARM Cortex-A55 2.0GHz with 4GB fixed RAM, an NPU, one 2.5GbE and one Gigabit port, no M.2 or PCIe slots and a 2-year warranty. The TS-464-8G has an Intel Celeron N5095 with 8GB (up to 16GB), two 2.5GbE ports, two M.2 NVMe slots, a PCIe slot for 10GbE, HDMI 2.1 and a 3-year warranty.
Choose the TS-464 for media, backup and general file sharing: it has HDMI and hardware transcoding built in. Choose the TS-473A for virtual machines, heavier containers and 10GbE: its Ryzen V1500B has 8 threads, takes up to 64GB with ECC support and has two PCIe Gen 3 x4 slots, but graphics and HDMI need a PCIe adapter.
The TS-462-4G has a dual-core Celeron N4505, 4GB, one 2.5GbE port and a 2-year warranty. The TS-464-8G has a quad-core N5095, 8GB, two 2.5GbE ports and a 3-year warranty. For most buyers the TS-464 is the better long-term choice.
Yes. QNAP says the TS-464 also supports QuTS hero, its ZFS-based operating system. QNAP recommends at least 8GB RAM, 16GB for inline deduplication and 32GB for optimal performance. Switching from QTS means backing up and removing all drives first.
Yes on the TS-462, TS-464 and TS-473A, through their PCIe slots. In QNAP's testing the TS-464 reached 1647 MB/s read with a dual-port 10GbE card. The TS-433 has no PCIe slot.
Yes. The TS-473A-8G ships with 8GB DDR4 and supports up to 64GB (2 x 32GB) with ECC memory. QNAP notes that using ECC means removing the pre-installed module, and dual-module setups need a pair of identical modules.
Four bays suit most homes and small offices in RAID 5. If you expect to fill four drives soon, or want RAID 6 with two-drive protection, the TS-664-8G and TS-673A-8G are the 6-bay versions of the TS-464 and TS-473A.
ARC IP Networks is an authorised QNAP reseller and supplies genuine QNAP from Australian stock with a GST tax invoice. Order at arcip.com.au, call 1300 100 440 or email info@arcip.com.au for a quote.
Need help choosing a 4-bay QNAP?
Tell us your users, data and growth plans. ARC IP Networks will match a QNAP NAS, drives and network upgrades and quote them, with trade pricing for installers and IT providers. Call 1300 100 440 or email info@arcip.com.au.
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