SeeedStudio LinkStar H68K-1432

abgn+ac+ax (AX1800)
	Travel Router
Homepage	Product page
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Supported
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	SeeedStudio LinkStar H68K-1432 Versions One and Two
FCC ID	RAS-MT7921
Type	travel router
CPU1	Rockchip RK3568
CPU1 Type	ARM Cortex-A55
CPU1 Speed	2.0 GHz ( 4 cores )
Flash1 Chip	Hosin Global HG-EMC032-N1510
Flash1 Size	32 GiB 32,768 MiB <br />34,359,738,368 B <br />268,435,456 Kib <br />33,554,432 KiB <br />262,144 Mib <br /> (eMMC)
RAM1 Size	4 GiB 4,096 MiB <br />4,294,967,296 B <br />33,554,432 Kib <br />4,194,304 KiB <br />32,768 Mib <br /> (LPDDR4X)
RAM1 Chip	CXMT CXDB5CCAM-MK
ETH chip1	Rockchip RK3568
ETH chip2	Realtek RTL8125B
ETH chip3	Realtek RTL8125B
ETH chip4	Realtek RTL8211F
ETH chip5	Realtek RTL8211F
Ethernet Port Count	2-2.5GbE-WAN; 2-1GbE-LAN
Wired Standard	IEEE 802.3i/3u/3ab/3bz
	802dot11 OUI: none specified;
Stock bootloader	U-Boot
Expansion IF types	SD card slot, USB 2.0, USB 3.0, M.2 populated with MT7921E
USB ports	4
SD/MMC Slots	1
M.2 Slots	1
USB Hub Compatible	Untested
Power	5-24 VDC, ? A
Connector type	barrel; 5.5 mm (OD); 2.1 mm (ID); 9.5 mm (LEN)
Serial Port (UART)	yes, 3-pin header, populated, 3.3V TTL, (1500000 8N1)
	Flags:; Wi-Fi 6, Bluetooth 5.2, MicroSD Card slot, HDMI 2.0, Audio in/out (3.5mm), IR receiver, RTC, metal case, heatsink
Other
Manuf/OEM/ODM	SeeedStudio
3rd Party Firmware Support	Armbian (unofficial), OpenWrt • (List \| Dev \| DLs); , Lubuntu
Retail
FCC approval date	24 May 2021
(Est.) release date	November 2022
(Est.) initial retail price (in USD):	$120
ASIN	B0BPY96KTH
Country of manuf	China
Radio 1
Radio1 module	LB-Link BL-M7921E-1X
Radio1 module IF	Mini PCIe (M.2)
Chip1	MediaTek MT7921E
Wireless interface OUI	none specified
Antenna Connector Type	MHF4, RP-SMA
MIMO status	2x2:2
Wireless Standard	IEEE 802.11a/b/g/n/ac/ax
802.11ax	up to 574/1201 Mbps
802.11ac	up to 867 Mbps
802.11n	up to 300/300 Mbps
802.11g	up to 54 Mbps
802.11b	up to 11 Mbps
802.11a	up to 54 Mbps
WiFi Operating Frequency	2.4 or 5 GHz
AI-LINK WF-M921E-MPA1	RAS-MT7921
AzureWave AW-XB468NF	RAS-MT7921
MediaTek MT7921 Reference Design	RAS-MT7921
MediaTek MT7921K Reference Design	RAS-MT7921K; RAS-MT7921

For a list of all currently documented MediaTek chipsets with specifications, see MediaTek.
For a list of all currently documented Realtek chipsets with specifications, see Realtek.
For a list of all currently documented Rockchip SoC's with specifications, see Rockchip.

For a list of all currently documented SeeedStudio devices with specifications, see SeeedStudio.

• 574 Mbps - 2SS 2.4GHz 802.11ax (40MHz chan., 256-QAM),

• 1201 Mbps - 2SS 5GHz 802.11ax (80MHz chan., 1024-QAM) = AX1800 class

Overview

"V1_210825" and "OWL-Factory-3568" are silk-screened on the SoM.

"2022/09/06" and "OPC_H68K_V2" are silk-screened on the Carrier Board.

"2022/09/06" and "OPC_H68K_TOP_V2" are silk-screened on the Expansion Board.

Hardware specification

CPU: Rockchip RK3568 @2.0GHz

SoC: Quad-core ARM (Cortex-A55); NPU: 0.8 TOPS

GPU: Mali-G52 MP2 @650MHz (OpenGL ES3.2, OpenCL 2.0)

VPU (with 4K VP9 and 4K 10-bit H265/H264 decoding)

Storage: 32GB (eMMC) Flash,

TF card (max.128GB)/MMC card

Memory: 4GB (LPDDR4X) RAM
USB: 1x USB 3.0 (Type-A) port,

1x USB 3.0 (Type-C), 2x USB 2.0 ports

Network: 2x 1GbE, 2x 2.5GbE ports
Wi-Fi: MediaTek MT7921E (802.11ax) via M.2 (E-Key)
Power Source: 5-24V via barrel or 5V via USB (Type-C)

Links of Interest

Docs

Reviews

Flashing

NOTE: During configuration or flashing a device, the only things that should be hooked to the device is the computer and power.

Flashing OpenWrt

The development branch can contain experimental code that is under active development and should not be used for production environments. Snapshot images may support additional hardware; however, it is experimental, considered unstable, and sometimes won't compile.

Prebuilt snapshot images do not come with any web interface or GUI. You will need to be comfortable using a command line and remote shell to install one yourself → How to install LuCI

On the OpenWrt ToH (techdata entry)
On the OpenWrt Forum

Target: rockchip
Subtarget: armv8
Package architecture: aarch64_generic
Supported Since Commit
Support started version: unknown
Current supported version: snapshot

Unsupported Functions:
audio, video
LAN Comment: 2x Realtek RTL8125B 2.5Gbe Phy, 2x Realtek RTL8211F 1Gbe Phy
WLAN Hardware: MediaTek M7921E (M.2 module)
Installation method(s):
See forum
Recovery method(s):
Serial
Comment:
also known as HinLink, the OEM of the hardware to Seeed.

git • >>

rockchip: add HINLINK H28K support
Hardware:
- RK3528 SoC
- 1x USB 2.0
- 8/32GB eMMC
- 1/2/4GB LPDDR4
- 1x 1GbE RTL8111H
- 1x 1GbE RTL8211F
- MicroSD card slot

Installation:
  Use dd or balenaEtcher to flash the firmware.

Note:
  The RK3528 SoC does not support MSI-X, so it can't
  adjust the interrupts of r8169 to other CPU cores.

Signed-off-by: Chukun Pan
(cherry picked from commit e8997e7e037742d03fa16650824e0daa9b0a2e3a)