QNAP TS-855EU-8G 8-Bay 2U Rackmount NAS, Intel Atom C5125 8-Core 2.8GHz, 8GB DDR4, Diskless, QuTS hero

QNAP TS-855EU-8G – rack-ready storage for growing teams

The QNAP TS-855EU-8G suits small and medium businesses that need shared, expandable storage in a rack. Its eight hot-swap bays let you build capacity with your choice of compatible HDDs or SSDs.

Key specifications at a glance

Add capacity and choose your RAID layout

This NAS supports up to eight 2.5-inch or 3.5-inch SATA II or SATA III drives. It arrives without drives, so you can choose a capacity and drive type to suit your needs.

RAID options include RAID 0, 1, 5, 10, 50, 60 and JBOD. Online RAID expansion and migration help you adapt your storage setup as requirements change. Hot-swap bays also allow drive replacement without removing the NAS from your rack.

Run shared storage and business workloads

The eight-core Intel Atom C5125 runs at 2.8GHz and works with 8GB of DDR4 memory. You can expand the memory to 64GB across two slots as your workload grows.

Two RJ-45 ports support network speeds up to 2.5Gb/s. The unit also includes two PCIe Gen 3 x4 slots and two M.2 slots, giving you options to extend the system.

Use QuTS hero tools for data management

QuTS hero uses ZFS and supports snapshots, access control lists and iSCSI. These features help teams manage shared files and storage volumes from one NAS.

Backup options include USB drives and iSCSI LUNs. Four USB Type-A ports provide connections for peripherals and USB copy tasks.

Check your rack and drive plans

• Confirm your rack has space for a 2U chassis measuring 432mm wide, 297.4mm deep and 88.6mm high.
• Check that your planned HDDs or SSDs are 2.5-inch or 3.5-inch SATA drives.
• Confirm your network equipment supports the connection speeds you plan to use.
• Check your required storage capacity and RAID layout before choosing drives.

In the box

• AC cable
• LAN (RJ-45) cable
• Quick installation guide

Frequently Asked Questions

Q: Are storage drives included?

A: No. The NAS is diskless and supports up to eight compatible HDDs or SSDs.

Q: Which RAID levels does it support?

A: It supports RAID 0, 1, 5, 10, 50, 60 and JBOD.

Q: Can I expand the memory?

A: Yes. It has 8GB of DDR4 memory and supports up to 64GB across two memory slots.

Q: How many network ports does it have?

A: It has two RJ-45 Ethernet ports, with supported speeds up to 2.5Gb/s.

A strong fit for expandable business storage

Choose the QNAP TS-855EU-8G if your team needs a 2U NAS with eight drive bays, QuTS hero and room to expand. It includes a three-year warranty.