QNAP TS-119PII with Different Wireless Device on Mac OSX File Transfer Performance Report

I did this test because uploading files to NAS is incredible slow today. The only different is my new WF2190 last week. I spends hours to do a full check of my NAS and eventually find out it is related to driver. I didn’t uninstall D-Link DWA-171 rev A1‘s Realtek driver before installing netis WF2190. During the test, I also learned the difference of my WiFi devices.


QNAP TS-119PII uses a Marvell 88F6282 which is a single core ARMv5TE-compliant 32-bit processor with 256K L2 cache. It comes with 512MB RAM and is not upgradable.

I install a single Seagate Laptop SSHD 1 TB in it.

QTS is an embedded Linux developed by QNAP. This report test with 4.2.4 build 20170313.

QNAP TS-119PII with Mac OSX File Transfer Performance Report is a good reference to learn its capability.

Mac Mini Late 2012

I have upgrade my Mac mini Late 2012 to 16GB RAM and use a SanDisk Extreme Pro 480GB SSD which use MLC. It is running OSX 10.12 aka macOS Sierra. Both D-Link DWA-171 rev A1 and netis WF2190 are working properly.

According to System Information and macg.co:Mac mini (Late 2012)は11n/450Mbps/3ストリームに対応している on MACお宝鑑定団, the build-in AirPort Extreme 802.11n is based on Broadcom BCM43xx which is capable being up to 450Mbps at 5GHz on 40MHz bandwidth using 3×3:3. I am not sure if 2.4GHz may support up to 450Mbps yet.

The connection speed is 300Mbps with Asus RT-AC1200G+ at 2.4GHz and 5GHz. WPA2 Personal is used for encryption.

Asus RT-AC1200G+

According to ASUS RT-AC1200GP on WikiDevi, some important features include:

  1. Broadcom BCM47189 supports 802.11ac802.11n, and 802.11a@ 5GHz.
  2. Broadcom BCM43217 supports 802.11n802.11g, and 802.11b @ 2.4GHz.
  3. Max speed for 802.11n is 300Mbps with 2T2R.
  4. Max speed for 802.11ac is 867Mbps with 2T2R.
  5. Gigabit Ethernet.

D-Link DWA-171 Rev A1

The H/W ver: A1 is very important information but only show on a small label on the package or the last few characters of P/N on the device. Different hardware version might use different chips result in different performance and comparability.

According to D-Link DWA-171 rev A1 on WikiDevi, some important features include:

  1. Realtel RTL8811AU supports draft 802.11ac which is not 802.11ac.
  2. Max speed for 802.11n is 150Mbps with 1T1R.

It works on OSXWindows Server 2012 R2, and QTS.

netis WF2190

According to Netis WF2190 on WikiDevi, some important features include:

  1. Realtel RTL8812AU supports draft 802.11ac which is not 802.11ac.
  2. Max speed for 802.11n is 300Mbps with 2T2R.

It works on OSX.

Test Method

It is detail explained in Prepare Your NAS File Transfer Performance Test with Mac OSX Client. Apple also provides How to connect with File Sharing on your Mac to help.

But there are some difference in this post:

  1. I use AFP (Apple Filing Protocol) instead of Samba and NFS.
  2. A single 451.7MB MP4 file.
  3. Upload to TS-119PII through File Station. The Background Task windows provides upload Transfer Rate information.
  4. Temperature is measured by smcFanControl 2.6. Computer fan runs at 5500rpm and the weather is 29°C to 33°C.

Performance and Temperature

Theoretical (All @ 5 GHz) Upload Speed Mac Mini Temperature
Mac Mini Build-in 2T2R 802.11n @ 300Mbps 25MB/s 57°C
D-Link DWA-171 rev A1 1T1R draft 802.11ac @ 433Mbps 19MB/s 57°C
netis WF2190  2T2R draft 802.11ac @ 867Mbps 27MB/s  60°C


Build-in WiFi (Broadcom BCM43xx) is about 20% faster than DWA-171 rev A1 (RTL8811AU). WF2190 (RTL8812AU) is fastest but Mac mini is also hottest.

More Thoughts

After testing with different devices, I have following conclusion:

  1. Always use only one Realtek device and driver on the same OSX computer.
  2. If you want to install a new driver, uninstall the others first.
  3. Although a draft 802.11ac 1T1R device has better spec, it’s not always faster than a 802.11n with 2T2R.


  1. Apple: How to connect with File Sharing on your Mac
  2. Apple: Mac mini (Late 2012) – Technical Specifications
  3. Apple: macOS Sierra
  4. Apple: OS X
  5. Asus: RT-AC1200G+
  6. D-Link Wireless AC Dual Band USB Adapter DWA-171
  7. eidac: smcFanControl 2.6 released
  8. MACお宝鑑定団:macg.co:Mac mini (Late 2012)は11n/450Mbps/3ストリームに対応している
  9. Marvell: Marvell 88F6282 SoC
  10. Microsoft: Windows Server 2012 R2
  11. netis: WF2190
  12. QNAP
  13. QNAP: File Storage & Sharing
  14. QNAP TS-119PII
  15. QNAP TS-119PII with Mac OSX File Transfer Performance Report
  16. QNAP TS-119PII
  17. QNAP: QTS
  19. Seagate Laptop SSHD Datasheet
  20. Thecus W5000 and QNAP TS-119PII with Mac OSX Wireless File Transfer Performance Report
  21. Wiki: Apple Filing Protocol
  22. Wiki: ARM architecture
  23. Wiki: Gigabit Ethernet
  24. Wiki: IEEE 802.11a-1999
  25. Wiki: IEEE 802.11ac
  26. Wiki: IEEE 802.11b-1999
  27. Wiki: IEEE 802.11g-2003
  28. Wiki: IEEE 802.11n-2009
  29. Wiki: Multi-level cell
  30. Wiki: Wi-Fi Protected Access
  31. WikiDevi: ASUS RT-AC1200GP
  32. WikiDevi: Broadcom
  33. WikiDevi: D-Link DWA-171 rev A1
  34. WikiDevi: Netis WF2190
  35. WikiDevi: Realtek

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