diff --git a/doc/devices/2G5F4_10G2_V1.01.md b/doc/devices/2G5F4_10G2_V1.01.md
index 6ed945b5..fc3803a2 100644
--- a/doc/devices/2G5F4_10G2_V1.01.md
+++ b/doc/devices/2G5F4_10G2_V1.01.md
@@ -17,11 +17,26 @@ RTLPlayground image fills exactly.
 
 ### Label specifications
 
-- **Manufacturer**: hongyavision
-- **Model**: HYWS-SGT0204S
+Case, top / front / nameplate:
+
+<img src="photos/2G5F4_10G2_V1.01/assembled-top.jpg" width="300" />
+<img src="photos/2G5F4_10G2_V1.01/assembled-front.jpg" width="300" />
+<img src="photos/2G5F4_10G2_V1.01/assembled-bottom.jpg" width="300" />
+
+- **Manufacturer**: hongyavision (Shenzhen Hongyavision Electronic Technology
+  Co., Ltd.)
+- **Model**: HYWS-SGT0204S — the nameplate is printed in Chinese and reads
+  "10/100/1000/2500M fibre switch" and "4x 2.5G copper port + 2x 10G SFP+
+  optical port"
 - **Ports**:
   - 4 × RJ45: 10/100/1000/2500 Mbps
   - 2 × SFP+: 1G / 2.5G / 10G
+- **Power**: 12 V DC, 2 A
+- **Serial number**: `S/N-YYYYMMDDNNNN`, e.g. `S/N-202312010028`
+
+The top of the case only carries generic printing ("2.5G+10G High Speed Fiber
+Transceiver / 4-Port 2.5G Ethernet Switch+10G Fiber"), so the nameplate on the
+bottom is what identifies the device.
 
 ### What works
 
@@ -81,8 +96,10 @@ SDS0.
 
 ### Serial console
 
-The board has three through-holes used as the serial console. **The silkscreen
-labels are wrong**: they are shifted relative to the actual signals.
+The board has three through-holes used as the serial console, next to the
+heatsink in the middle of the board and visible in the top side photo above (the
+silkscreen labels are printed rotated by 90°). **The silkscreen labels are
+wrong**: they are shifted relative to the actual signals.
 
 | Silkscreen label | Actual signal |
 |------------------|---------------|
@@ -106,13 +123,15 @@ Wiring (following the measured signals, not the labels):
 
 ### LED configuration
 
-Case silkscreen:
+Case silkscreen, below the RJ45 ports:
 
 ```
-White : 2.5G
-Blue  : 1000M/2.5G L/A
+White : 2.5G    Blue : 1000M/2500M L/A
 ```
 
+The front panel also carries a `PWR` LED and one LED per SFP cage (`SFP1`,
+`SFP2`) on the right hand side.
+
 | Port       | LED          | Linked, idle | With traffic |
 |------------|--------------|--------------|--------------|
 | Copper     | white        | 2.5G only    | same         |
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