Listing Price: 999999.99¥ (Seller has apparently stated he bought it for $60,000 USD and wants $100,000 USD for it.)
Listing Description: "switch Prototype Test Bench"
Listing Description (Original): "switch 原型机测试台"
An early prototype of Nintendo's SDEV development unit. This is likely either an SDEV 0.9 or an SDEV 1, both of which were based on the FP2 board that this unit appears to have.
According to leaked documents, this would mean it is from Q3 2015.
Nintendo Switch SDEV Unit
Listing Price: 7800¥
Listing Description: "Nintendo switch console, rare development machine, appearance as shown, can enter the system, internal games, may not be fully entered, screen intact, buttons normal."
A Nintendo Switch SDEV unit, with a build of the game 'BioShock 2: Remastered Edition' installed.
Nintendo Switch ADEV (OLED Model) Kit 'Relay Box' PCB
Listing Price: 600¥
Listing Description: "switch motherboard, switch oled card slot" (Was part of a different listing with multiple items, which would be listed separately.)
The board of an Nintendo Switch ADEV's (OLED Development Unit) Relay Box, which acts as the system's dock.
The board's model number is 'PWB-AU-CHN-HEG-RXA-MAIN-01'.
Unlike the EDEV's white Relay Box, the housing of the ADEV's Relay Box is blue.
Pre-Release Development Kit Joy-Con Shells
Listing Price: 66¥
Listing Description: "Nintendo original rare unsold NS handle prototype shell pure black"
The shells of joy-con used with development units, given to devs before the console's launch; easily identifiable by their solid black colour.
Based on the mold stamp, these were manufactured on July 16th, 2016.
Nowadays though, development units (SDEV, EDEV and ADEV) are shipped with stock grey Joy-Cons.
An example of this joy-con type being used with an EDEV.
EP1 Prototype Joy-Con Joysticks
Listing Price: 19¥
Listing Description: "Nintendo original not on sale NS handle trial product rocker made in Japan"
These joysticks were used in EP1 (Engineering Production) Joy-Cons during the development of the Nintendo Switch. They're slightly smaller than the retail version, and have semi-opaque rubber on top instead of black.
Photos of these joysticks can often be seen in both the Nintendo Switch SDK and Nintendo's company brochures. This version of Joy-Con also had a camera-shaped screenshot button, unlike the finalized square one.
JTAG Debugging Board
Listing Price: 1999¥
Listing Description: "Nintendo beta small version of the development version"
Listing Description (Original): "任天堂测试小版开发版 全新橙色"
This is a board that was used for JTAG debugging during development of the Nintendo Switch. It's model number is 'JTAG-RLY-X2'.
A JTAG-RLY-X2 can be seen on this page of Nintendo's job introduction site; regarding efforts to improve the security of the Nintendo Switch, as described by firmware programmer Yuki Tanaka.
A pre-release Lithium-ion battery used in 'Odin' prototype Nintendo Switch units.
R&D Prototype Dock 'HAC-XXX'
Listing Price: 58¥
Listing Description: "S base remnant R&D version Model HAC-XXX unlisted, Injection date Sep 16. Remnants of the R&D version not yet available before the NS main unit was launched."
Listing Description: "Mainframe power supply design development prototype Philippine-made, super rare, marked as not for commercial use, only 2 pieces available"
