OPTOMA ZK521ST 5,000-Lumen 4K UHD Short Throw Projector

Name: OPTOMA ZK521ST 5,000-Lumen 4K UHD Short Throw Projector
Brand: OPTOMA
SKU: ZK521ST
Price: 2699.00 USD
Availability: InStock

OPTOMA|

MPN: ZK521ST

UPC: 796435448561

Low Stock (3 left)

$2,699.00$3,999.00

Request for QuoteCall 224-955-1644 for Sales

Ground ShippingArrives by Friday, Nov 13

Authorized Dealer — Full manufacturer warranty

Business Pricing Available

Exclusive pricing and Net-30 terms. Sign in or create a free account.

Create Free Business Account

Key Features

4K UHD laser projection
5,000 lumens
0.79:1 throw ratio
Dual HDMI 2.0 inputs
3-year warranty
5,000-lumen laser light source

Install the OPTOMA ZK521ST where a large 4K UHD image is needed with limited projector-to-screen distance. Its 0.79:1 throw ratio supports short-throw placement, while the 5,000-lumen laser light source suits rooms that need higher image brightness. Two HDMI 2.0 inputs support 4K HDR sources; VGA input supports legacy video equipment. Two USB-A ports provide power or dongle connectivity. RJ45 and RS232 provide control connections, and a 3.5 mm audio output, 3D Sync connection, and 12 V trigger extend integration options. The projector is white, weighs 6.6 lb, and includes a 3-year warranty.

Ideal For

Short-throw 4K projection in meeting rooms with limited mounting depth
Presentation systems requiring HDMI, VGA, network, and serial control connections
Installations using a 12 V trigger or 3D Sync connection

Physical

Color	White
Product Weight	6.6 lb
Shipping Weight	10.55 lb shipping weight

Warranty

Term	3-year warranty

Projection

Brightness	5,000 lumens
Resolution	4K UHD
Throw Ratio	0.79:1 throw ratio
Light Source	Laser light source

Connectivity

Rs232	1 × RS232 port
3d Sync	3D Sync connection
Network	RJ45 network port
Vga Input	1 × VGA input
Hdmi Inputs	2 × HDMI 2.0 inputs with 4K HDR
Usb A Ports	2 × USB-A ports for power or dongle use
Audio Output	1 × 3.5 mm audio output
Trigger Output	12 V trigger

Identification

Upc	UPC 796435448431

Purchasing this for your business?

Business account holders get access to exclusive pricing, volume discounts, and dedicated support. Create a free account to get started.

Wholesale pricing below retail

Net-30 terms for qualified businesses

Volume discount tiers

Dedicated account representative

Saved payment methods & PO support

Priority order processing

Create Free Business Account

Frequently Asked Questions

What is included with ZK521ST?▾

ZK521ST denotes the 4K UHD short-throw laser projector and carries a stated 3-year warranty. Published hardware connections include two HDMI 2.0 inputs, VGA input, two USB-A ports, RJ45, RS232, 3.5 mm audio output, 3D Sync, and a 12 V trigger.

What throw ratio does the OPTOMA ZK521ST use?▾

The OPTOMA ZK521ST has a 0.79:1 throw ratio. This short-throw specification helps place the projector closer to the screen than standard-throw models, which can be useful where room depth or mounting distance is limited.

Which source connections are available on the ZK521ST?▾

The ZK521ST provides two HDMI 2.0 inputs supporting 4K HDR and one VGA input. It also has two USB-A ports for power or dongle use, plus RJ45 and RS232 connections for control integration.