Listed here is a Mitsumi Japanese Keyboard Unit Model KFK-EA9XA. I have not plugged in the keyboard to test it out, but it does look like it's in good shape. You get the exact unit seen in the pictures.
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AULA F2088 Mechanical Keyboard Retro Punk Round Keycaps Gaming Keyboard for PC Laptop Tablet 104 Keys Wired RGB Backlit Keyboard
Aliexpress UK
The MITSUMI Vintage Model KPQEA4ZA Computer Keyboard is a unique and sought-after piece for vintage computing enthusiasts. With its classic design and five pin male connection, this keyboard offers a simple yet functional interface for retro computer systems. The Mitsumi brand is known for producing durable and reliable components, making this keyboard a valuable addition to any vintage computing collection. See pictures for details.
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BOW Foldable Bluetooth Keyboard Rechargeable Wireless Keyboard Folding 2.4G Keyboard for iPhone ipad Laptop Desktop
Aliexpress UK
Keyboard only, as seen. Has scuffs and scratches, dirt, debris/hair, etc. KPQ-EA4ZA and KPQ-EA5ZA are Mitsumi KPQ Type keyboards designed for Windows 95; they are, in effect, Mitsumi KPQ-E99ZC keyboards with Windows keys added.
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Wireless Keyboard Bluetooth-compatible Keyboard For Android IOS Windows Mini 78-Key Gaming Keybaord for PC iPad Tablet Keyboard
Aliexpress UK
This offer is Vintage "Old School" Mitsumi KPQ-Ea5za din Keyboard keyboard Swiss layout DIN connection The keyboard for older generation computers, XT, 286, 386 Simply for everyone, with din keyboard connection. Can also be used for PS/2 connections via adapter (adapter is not included) Originally packed, unused Scope of delivery: 1x keyboard as shown and described, including OVP ***.
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LEOBOG Hi75 Hi75C 81 Keys Hot Swap Mechanical Keyboard Kit Barebone Keyboard RGB Backlit Gasket-mounted Customizable Keyboard
Aliexpress UK
This offer is Rare Mitsumi din keyboard KPQ-E99ZC-12 with diggers block English + Russian Brand: Mitsumi Model: KPQ-E99ZC-12 Connection: din 5-PIN Layout: English and Russian Special features: digit block Condition: new, ossified OVP. The keyboard is unused and was only taken out of the packaging to make photographs. The packaging is slightly damaged. Scope of delivery: din keyboard, as shown. Condition: new ***.
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GEODMAER Wireless Gaming Keyboard Rechargeable Backlit Gaming Keyboard 68 Keys English/Spanish Layout 2.4G Keyboard for PC
Aliexpress UK
The Mitsumi KPQ-E99YC AT / XT Keyboard is a vintage keyboard designed for use with AT and XT computers. With its retro design and FCC ID number listed as EW4KPQ2479D, this keyboard is perfect for vintage computing enthusiasts looking to add a touch of nostalgia to their setup. The keyboard is durable and well-constructed, making it a reliable choice for those interested in typewriters and classic computing technology.
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Keyboard wrist Rest Memory Foam Keyboard Mouse wrist Rest Ergonomic Design Wrist Pad for Computer Keyboard Laptop Wrist
Aliexpress UK
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Bluetooth Wireless Keyboard Mini Keyboard For Laptop Tablet Phone Ipad Rechargeable Gaming Keyboard For Android iOS Windows
Aliexpress UK
Mitsumi Model KPQEA4ZA Keyboard, PS/2 Connector. Not tested.
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GATERON G Pro 3.0 Keyboard Switch Pro3.0 Mechanical Keyboard Accessories Yellow Brown Silver Switch For Keyboard Pre Lubed
Aliexpress UK