diff --git a/namco/boards.md b/namco/boards.md
index 68b1009..3014951 100644
--- a/namco/boards.md
+++ b/namco/boards.md
@@ -145,19 +145,19 @@ PC, x86-based. Variants: ES1, ES1(A2).
 PC, x86-based. Budget, redemption and medal game model. Variants: ES2(A), ES2P(A).
 
 ES2(A):  
-**MBD:** SORD TEM400-based  
-**CPU:** Intel Atom ??? (1.6 GHz)  
-**RAM:** ???  
-**GPU:** ???  
-**HDD:** ???
-**IO:** ???
+**MBD:** SORD TEM400-02A  
+**CPU:** Intel Atom D510/D410/N450 (1.6 GHz)  
+**RAM:** 1x Micron MT16HTF25664HZ-800H1 (DDR2 SODIMM, PC2-6400S, 2GB)  
+**GPU:** AMD Radeon HD6450 (PCIe, 512MB, LP)  
+**SSD:** Kingston SSDNow V100 SV100S2/32G (SATA 2.5", 32GB)  
+**IO:** [Namco H058 TSIF PCB](io.md#h058-tsif)  
 
 ES2P(A):  
 **MBD:** Advantech GMB-"Ontario" V1.1  
 **APU:** AMD G-T56N 
 **RAM:** 1x SanMax Technologies SMD-N2G68H1P-13H (SODIMM, PC3-10600S, 2GB)  
 **HDD:** HGST HTS545025A7E380 (SATA 2.5", 250GB, 5400RPM)  
-**IO:** "H058 TSIFPLUS PCB"  
+**IO:** [Namco H058 TSIFPLUS PCB](io.md#h058-tsifplus)  
 
 ```
        - Pokemon Medal World (PMW)
@@ -210,7 +210,7 @@ PC, x86-based. Lower spec, also used for budget/redemption games? Variants: ES4(
 **APU:** AMD GX-424CC  
 **RAM:** 1x UMAX Castor 83EA4G93UM (SoDDR3, 4GB, PC4-12800, 1.355V)  
 **HDD:** ???  
-**IO:** "H058 TSIFPLUS PCB"  
+**IO:** [Namco H058 TSIFPLUS PCB](io.md#h058-tsifplus)  
 
 ```
        - Point Blank X/Gunbullet X (PBX)
diff --git a/namco/io.md b/namco/io.md
index 9894b1d..678788b 100644
--- a/namco/io.md
+++ b/namco/io.md
@@ -39,3 +39,39 @@ External serial interface. Connects to motherboard serial, and exposes JVS and s
   - (internal) 1x 12pin (to motherboard front panel and motherboard serial header, pinout up-down: JF1-RST-L JF1-RST-R JF1-PWRON-L JF1-PWRON-R JF1-HDDLED-L JF1-HDDLED-R JF1-PWRLED-L JF1-PWRLED-R COM-RTS COM-CTS COM-RXD COM-TXD
   - (internal) 1x 4pin (to power supply 12V and 5V, pinout left-right: GND GND NC GND 12V 5V)
   - (internal) 1x 4pin (to JVS expansion card, pinout left-right: V+ D+ D- V-)
+
+## H058 TSIF
+
+External interface. Connects to motherboard and exposes a bunch of custom connectors.
+
+* Product: 8920960102 / (8920970102) / 12010769
+* Label: H058 TSIF PCB
+* Chips:
+  - FTDI FT232RL (SSOP28, RS-232 to USB transceiver)
+  - Maxlinear SP3222EUCY (SSOP16, RS-232 transceiver)
+* Connectors:
+  - (external) 1x 3pin  (CN3, SERIAL1, to SP3222EUCY, pinout left-right: GND T1OUT R1IN)
+  - (external) 1x 8pin  (CN6, SERIAL2, to CN4, pinout left-right: NC NC RXD1 TXD1 RTS1 CTS1 GND1)
+  - (external) 1x 3pin  (CN5, SERIAL3, to CN4, pinout left-right: TXD2 RXD2 GND2)
+  - (external) 1x 3.5mm (CN2, AUDIO2, to CN1)
+  - (internal) 1x 4pin  (CN1, audio, pinout left-right: LINE2_L FAUDIO_JD LINE2_R GND)
+  - (internal) 1x 16pin (CN4, serial & front panel, pinout left-right: RXD1 TXD1 RTS1 CTS1 GND1 TXD2 RXD2 GND2 HDDLED+ HDDLED- PWRLED+ PWRLED- PWRON+ PWRON- RESET- RESET+)
+  - (internal) 1x 2pin  (CN9, power, pinout left-right: 12V GND)
+  - (internal) 1x 5pin  (CN8, USB, pinout left-right: 5V D- D+ D- NC)
+
+## H058 TSIFPLUS
+
+External interface. Connects to motherboard and exposes a custom connector, JVS USB, two LEDs, an on-board jumper (JP2, unpopulated) and a switch (SW1, unpopulated).
+
+* Product: 8920960201 / (8920970201) / 140125415
+* Label: H058 TSIFPLUS PCB
+* Chips:
+  - Hitachi HD64F3672 (QFP48, H8 MCU)
+  - "14745 KSS 3LF" (14.745 MHz crystal)
+  - Sipex SP485EC (SOIC8, RS-485 transceiver)
+  - Maxlinear SP3222EUCY (SSOP16, RS-232 transceiver)
+* Connectors:
+  - (external) 1x 7pin  (CN3, pinout left-right: 12V NC RXD1 TXD1 RTS1 CTS1 GND1)
+  - (external) 1x USB   (CN4, JVS)
+  - (internal) 1x 20pin (CN2, serial & front panel, pinout up-down left-right: RXD1 TXD1 RTS1 CTS1 GND1 TXD2 RXD2 RTS2 CTS2 NC HDDLED+ HDDLED- PWRLED+ PWRLED- JP2+ JP2- SW2+ SW2- NC NC)
+  - (internal) 1x 4pin  (CN1, power, pinout left-right: 5V GND 12V GND)