Sony KES-850A PS3 Super Slim Blu-Ray Laser Lens Deck — main product image

Sony KES-850A PS3 Super Slim Blu-Ray Laser Lens Deck

Sony

Sony KES-850A PS3 Super Slim Blu-Ray Laser Lens Deck

Name: Sony KES-850A PS3 Super Slim Blu-Ray Laser Lens Deck
Brand: Sony
SKU: KES-850A

★★★★★3.8 (80 reviews)

Restore Blu-ray disc reading on your PS3 Super Slim with this precision-engineered KES-850A replacement laser lens deck.

$39.99*

Check availability

*Price sourced from Amazon.com. Last updated:Jun 08, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

The Sony KES-850A KEM-850 Blu-ray Laser Lens Deck is a replacement optical drive assembly designed specifically for the PlayStation 3 Super Slim console line. When a PS3 Super Slim begins failing to read game discs, Blu-ray movies, or DVDs, the laser lens assembly is typically the component at fault. This deck replaces the entire optical unit — including the laser diode, lens, sled mechanism, and mounting frame — providing a comprehensive fix rather than a partial repair. It is engineered to work with CECH-4xxx series consoles including the CECH-4000, CECH-4001A, and CECH-4001B models.

A notable advantage of this part is its cross-compatibility between the KEM-850PHA 4301A and 4301B revisions, meaning you do not need to identify which specific revision your console originally shipped with. The deck connects via the standard SATA 3.0 Gb/s interface and ribbon cable, requiring no soldering. At just 4.8 ounces and measuring 5.1 x 4.1 x 0.9 inches, it matches the original component dimensions for a proper fit. While the replacement process does require opening the console and removing the existing drive assembly, it remains one of the more accessible console repairs for anyone comfortable with basic electronics work.

Key Features

Both models KEM-850PHA 4301B and KEM-850PHA 4301A are compatible and interchangeable.

Sony PlayStation 3 Super Slim Blu-ray Laser Lens KES-850A KEM-850 Deck For PS3 CECH-4xxx CECH-4000 CECH-4001A CECH-4001B

Specifications

Brand

Sony

Model

KES-850A / KEM-850

Compatible Platform

PlayStation 3 Super Slim

Compatible Models

CECH-4xxx, CECH-4000, CECH-4001A, CECH-4001B

Interchangeable With

KEM-850PHA 4301B, KEM-850PHA 4301A

Hardware Interface

SATA 3.0 Gb/s

Optical Write Speed

Media Type

Blu-ray Disc

Weight

4.8 ounces

Dimensions

5.1 x 4.1 x 0.9 inches

Pros & Cons

👍 Pros

Direct replacement for the original PS3 Super Slim laser assembly, restoring full Blu-ray and game disc reading capability
Compatible with both KEM-850PHA 4301A and 4301B variants, eliminating guesswork about which revision you need
Complete deck assembly means you replace the entire optical unit rather than attempting a delicate lens-only swap
Compact and lightweight at 4.8 ounces, matching the original component's form factor precisely

👎 Cons

Installation requires disassembling the PS3 Super Slim console, which can be challenging without prior repair experience
Only compatible with PS3 Super Slim CECH-4xxx models and will not work in original PS3 or PS3 Slim consoles
Drive may need recalibration or potentiometer adjustment if disc reading issues persist after installation
No installation tools or instructions are included with the replacement deck

Frequently Asked Questions

Which PS3 models is this laser lens deck compatible with?

This deck is compatible with PS3 Super Slim models CECH-4xxx, CECH-4000, CECH-4001A, and CECH-4001B. It is not compatible with original PS3 or PS3 Slim consoles.

Is this a complete deck assembly or just the laser lens?

This is a complete deck assembly that includes the laser lens, the drive mechanism, and the sled. It replaces the entire optical unit, not just the lens diode.

Are the KEM-850PHA 4301A and 4301B versions interchangeable?

Yes, both the KEM-850PHA 4301B and KEM-850PHA 4301A models are fully compatible and interchangeable with this deck, so either variant will work in your console.

Does installing this deck require soldering?

No soldering is required. The deck connects via a ribbon cable and SATA interface. However, disassembling the PS3 Super Slim to access the Blu-ray drive does require careful removal of screws and covers.