QNAP TS-h686-D1602-8G User Manual

Hardware Specification

TS-h686-D1602-8G

CPU Intel® Xeon® D-1602 dual-core 2.5 GHz processor (burst up to 3.2 GHz)

CPU Architecture 64-bit x86

Floating Point Unit Yes

Encryption Engine Yes (AES-NI)

Hardware-accelerated
Transcoding

Yes

System Memory 8 GB UDIMM DDR4 ECC (2 x 4 GB)

Maximum Memory 128 GB (4 x 32 GB)

Memory Slot 4 x Long-DIMM DDR4

Flash Memory 5GB (Dual boot OS protection)

Drive Bay 4 x 3.5-inch SATA 6Gb/s, 3Gb/s + 2 x 2.5-inch SATA 6Gb/s, 3Gb/s

Drive Compatibility 3.5-inch bays:

3.5-inch SATA hard disk drives

2.5-inch SATA hard disk drives

2.5-inch SATA solid state drives

2.5-inch bays:

2.5-inch SATA hard disk drives

2.5-inch SATA solid state drives

Hot-swappable Yes

M.2 SSD Slot 2 x M.2 2280/22110 NVMe Gen3 x4 slots

SSD Cache Acceleration
Support

Yes

2.5 Gigabit Ethernet Port
(2.5G/1G/100M)

4

Jumbo Frame Yes

PCIe Slot 2

Slot 1: PCIe Gen3 x8
Slot 2: PCIe Gen3 x8

USB 3.2 Gen 1 port 3

Form Factor Tower

LED Indicators System status, 2.5” SSD, M.2 SSD, 3.5” HDD

Buttons Power, Reset, USB Auto Copy

Dimensions (HxWxD) 231.9 × 224.9 × 319.8 mm

Operating temperature 0 - 35°C (32°F - 95°F)

Relative Humidity 5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)

Power Supply Unit Input: 100-240V~, 3-1.5A, 60-50Hz; Output 250W

Fan System fan: 1 x 80mm

CPU fan: 1 x 97mm

System Warning Buzzer

Kensington Security Slot Yes

Max. Number of
Concurrent Connections
(CIFS)

1500

Note: Use only QNAP memory modules to maintain system performance and stability. For NAS devices with more than one memory
slot, use QNAP modules with identical specifications. Warning: Using unsupported modules may degrade performance, cause errors,
or prevent the operating system from starting.
* Sound Level Test Environment: Refer to ISO 7779; Maximum HDD loaded; Bystander Position; Average data from 1 meter in front
of operating NAS.
Designs and specifications are subject to change without notice.