The QNAP TS-1655 is a 16-bay NAS designed for enterprise use. It comes with 8GB DDR4 of RAM and can be upgraded to 128GB DDR4. Powered by the Intel Atom C5125 processor, it offers reliable network-attached storage for file sharing, backups, and media streaming.
This guide covers complete RAM and storage compatibility for the QNAP TS-1655, including upgrade options, maximum supported configurations, and recommended drives.
Specifications Overview
| Specification | Details |
|---|---|
| NAS Model | QNAP TS-1655 |
| Brand | QNAP |
| Drive Bays | 16 bays |
| Processor | Intel Atom C5125 |
| Default RAM | 8GB DDR4 |
| Maximum RAM | 128GB DDR4 |
| RAM Type | DDR4 |
| RAM Slots | 4 |
| RAM Upgradeable | Yes |
| M.2 Slots | 2 (2280 NVMe Gen 3) |
| Ethernet | 4x 2.5GbE |
| USB Ports | 2x USB 3.2 Gen 1 |
| Use Case | Enterprise |
| Price Tier | Enterprise |
Memory (RAM) Compatibility
The QNAP TS-1655 ships with 8GB DDR4 and supports a maximum of 128GB DDR4 across 4 slots. Upgrading your NAS RAM can significantly improve performance for virtual machines, Docker containers, and simultaneous user access.
Recommended RAM Upgrades
| Module | Capacity | Price |
|---|---|---|
| Crucial SODIMM DDR4 | 4GB | Check Price |
| Crucial SODIMM DDR4 | 8GB | Check Price |
| Kingston ValueRAM DDR4 | 8GB | Check Price |
Storage Compatibility
The QNAP TS-1655 has 16 drive bays supporting 3.5″ SATA HDDs and 2.5″ SATA SSDs.
It also includes 2 M.2 slots (2280 NVMe Gen 3) for NVMe SSD caching, which can dramatically improve random read/write performance.
Recommended NAS Hard Drives
| Drive | Capacity | Price |
|---|---|---|
| Seagate IronWolf | 4TB | Check Price |
| Seagate IronWolf | 8TB | Check Price |
| WD Red Plus | 4TB | Check Price |
| WD Red Plus | 8TB | Check Price |
Recommended NVMe Cache Drives
| Drive | Capacity | Price |
|---|---|---|
| WD Red SN700 | 500GB NVMe | Check Price |
| Seagate IronWolf 525 | 500GB NVMe | Check Price |
Network Connectivity
The QNAP TS-1655 features 4x 2.5GbE Ethernet and 2x USB 3.2 Gen 1 connectivity.
With high-speed Ethernet, this NAS can fully utilise fast NVMe cache drives and multiple concurrent connections.
Related Guides
Frequently Asked Questions
What is the maximum RAM for the QNAP TS-1655?
The QNAP TS-1655 supports a maximum of 128GB DDR4. It ships with 8GB DDR4 by default.
How many drive bays does the QNAP TS-1655 have?
The QNAP TS-1655 has 16 drive bays supporting 3.5″ SATA HDDs and 2.5″ SATA SSDs. It also has 2 M.2 slots for NVMe SSD caching.
Can I upgrade the RAM in the QNAP TS-1655?
Yes, the RAM is user-upgradeable.
What hard drives work with the QNAP TS-1655?
The QNAP TS-1655 works with standard 3.5″ SATA HDDs. We recommend NAS-rated drives like the Seagate IronWolf or WD Red Plus.
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