The QNAP TS-873A is a 8-bay NAS from QNAP in the TS range. It comes with 8GB of DDR4 SO-DIMM RAM (upgradeable to 64GB) and supports 3.5-inch SATA HDD/SSD + 2x M.2 NVMe drives. This guide covers compatible RAM and storage upgrades with our top recommendations.
QNAP TS-873A Specifications
| NAS Model | QNAP TS-873A |
| Brand | QNAP |
| Series | TS |
| Drive Bays | 8 |
| Processor | AMD Ryzen V1500B |
| Default RAM | 8GB |
| Max RAM | 64GB |
| RAM Type | DDR4 SO-DIMM |
| RAM Slots | 2 |
| Drive Compatibility | 3.5-inch SATA HDD/SSD + 2x M.2 NVMe |
| Network | 2x 2.5GbE |
| Release Year | 2021 |
Compatible RAM for QNAP TS-873A
The QNAP TS-873A ships with 8GB and can be upgraded to a maximum of 64GB. It uses DDR4 SO-DIMM SO-DIMM modules (2 slots).
Recommended RAM Upgrades
| Capacity | Module | Buy |
|---|---|---|
| 4GB | Crucial DDR4-2666 4GB SO-DIMM | Check Price |
| 8GB | Crucial DDR4-2666 8GB SO-DIMM | Check Price |
| 16GB | Crucial DDR4-2666 16GB SO-DIMM | Check Price |
Compatible Storage Drives
The QNAP TS-873A has 8 drive bays supporting 3.5-inch SATA HDD/SSD + 2x M.2 NVMe. Here are our top drive recommendations:
Recommended NAS Drives
| Capacity | Drive | Buy |
|---|---|---|
| 4TB HDD | Seagate IronWolf 4TB NAS HDD | Check Price |
| 8TB HDD | Seagate IronWolf 8TB NAS HDD | Check Price |
| 16TB HDD | Seagate IronWolf Pro 16TB NAS HDD | Check Price |
| 1TB NVMe | Samsung 970 EVO Plus 1TB M.2 NVMe | Check Price |
Setup Tips
- Use NAS-rated drives: Always use drives designed for NAS use (e.g. Seagate IronWolf, WD Red Plus) for reliability and vibration resistance.
- RAID configuration: For data protection, use RAID 1 (mirroring) for 2-bay units or RAID 5/SHR for 4+ bay units.
- RAM upgrade: Upgrading RAM improves multitasking, virtualisation and app performance. Use QNAP-compatible modules.
- Network: Connect via Ethernet for best performance. This model supports 2x 2.5GbE.
Frequently Asked Questions
What is the maximum RAM for the QNAP TS-873A?
The QNAP TS-873A supports up to 64GB of DDR4 SO-DIMM RAM.
How many drive bays does the QNAP TS-873A have?
The QNAP TS-873A has 8 drive bays supporting 3.5-inch SATA HDD/SSD + 2x M.2 NVMe.
What drives are compatible with the QNAP TS-873A?
The QNAP TS-873A supports 3.5-inch SATA HDD/SSD + 2x M.2 NVMe. We recommend NAS-rated drives like the Seagate IronWolf or WD Red Plus series.
Related QNAP Upgrade Guides
- QNAP TS-233 RAM & Storage Compatibility
- QNAP TS-253E RAM & Storage Compatibility
- QNAP TS-453E RAM & Storage Compatibility
- QNAP TS-1655 RAM & Storage Compatibility
- QNAP TS-473A RAM & Storage Compatibility
- QNAP Upgrade Guide
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Prices from PCHub.UK via ComputersDeal. As an affiliate, we may earn from qualifying purchases. Prices updated 2026-04-10 08:16:07.