Component TS-251B
Drive compatibility • 3.5-inch SATA hard disk drives
• 2.5-inch SATA hard disk drives
• 2.5-inch SATA solid-state drives
Hot-swappable Yes
M.2 SSD type Optional: QNAP QM2 PCIe expansion card
SSD cache acceleration support Yes
Note
• SSD cache drives are not hot-swappable.
• M.2 SSDs are not hot-swappable.
• SSDs using PCIe expansion slots are not hot-
swappable.
Network
Gigabit Ethernet ports 1 x Gigabit RJ45
External I/O Ports & Expansion Slots
PCIe slots 1 x PCIe 2.0 x2
USB ports • Front: 1 x USB 3.0 Type-A
Note
You can use the One Touch Copy button with this port.
• Rear: 4 x USB Type-A:
• 3 x USB 2.0 Type-A
• 1 x USB 3.0 Type-A
HDMI outputs 1 x HDMI v1.4b (Supports up to 3840 x 2160 @ 30 Hz)
Audio • 2 x 3.5 mm dynamic microphone jacks
• 1 x 3.5 mm line-out jack
• 1 x speaker
Note
You cannot use the speaker and the line-out jack
simultaneously.
Interface
Buttons • Power
• Reset
• USB One Touch Copy
IR sensor 1
Note
The QNAP RM-IR004 remote control is an optional
separate purchase.
TS-251B User Guide
Product Overview 5
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