QNAP TS-464

What it is

QNAP's four bay unit with an Intel N5105 processor, dual 2.5GbE ports, and two M.2 NVMe slots for caching or a separate fast pool. The hardware specification beats Synology at the same price. QTS is less refined than DSM, and QNAP's security track record has been rougher.

What to check before you buy

• Keep this off the open internet. QNAP devices have been targeted repeatedly by ransomware campaigns.
• Confirm the firmware is current, since older versions have known vulnerabilities.
• Two 2.5GbE ports can be bonded, but your switch has to support it.
• Check whether the M.2 slots are populated.

What a fair price looks like

Across 3 listings tracked in the last three days, the median total cost in USD including shipping is $500, and the lowest is $475. RackSniper flags a listing once it falls at or below 70 percent of the trailing 30 day median, which for this product means roughly $350 or less. Condition and configuration vary widely on used enterprise hardware, so treat the median as a reference point rather than a target.