⚡ Limited Time: Save on the OWC Express 1M2 Thunderbolt 4 / USB4 Enclosure – Get Yours Before It’s Gone!

Flexx International Ltd
  • 0
No result found for your search.
  • Home
  • All Products
  • Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Categories
  • 🔍 Find Upgrades for My Mac
  • Mac Upgrades
  • Memory
  • Storage
  • Docks/Hubs
  • Enclosures
  • PCIe Cards
  • Adapters
  • Laptop Batteries
  • Tools & Service Kits
  • Peripherals
  • Dashcams/Bodycams
  • View More
Featured Products
OWC Express 1M2 USB4/Thunderbolt enclosure for NVMe M.2 SSDs - Portable External Storage
OWC Express 1M2 USB4/Thunderbolt 4 enclosure for NVMe M.2 SSDs - Portable External Storage
£120.49
OWC Envoy Ultra Thunderbolt™ 5 SSD – 6,000 MB/s Portable SSD (2TB/4TB) – Rugged & Fast External Drive
OWC Envoy Ultra Thunderbolt™ 5 SSD – 6,000 MB/s Portable SSD (2TB/4TB) – Rugged & Fast External Drive
£387.49
Sonnet Echo Thunderbolt 3 Dock with two slots for  M.2 NVMe SSD
Sonnet Echo Thunderbolt 3 Dock with two slots for M.2 NVMe SSD
£278.00
Sonnet Echo 13 Thunderbolt 5 Dock with SSD Storage (1TB-4TB), 140W Power, Mac/Windows/iPad Pro Compatible
Sonnet Echo 13 Thunderbolt 5 Dock with SSD Storage (1TB-4TB), 140W Power, Mac/Windows/iPad Pro Compatible
£466.49
Sonnet Silent Gen 4 PCIe card with 8 x M.2 NVMe SSD slots up to 64GB storage - add your own SSD
Sonnet Silent Gen 4 PCIe card with 8 x M.2 NVMe SSD slots up to 64GB storage - add your own SSD
£927.49
Transcend Portable SSD USB-C / USB-A model ESD310C
Transcend Portable SSD USB-C / USB-A model ESD310C
£31.49
OWC 128GB (4 x 32GB) PC4-21300 DDR4 2666MHz SODIMMs ram memory upgrade
OWC 128GB (4 x 32GB) PC4-21300 DDR4 2666MHz SODIMMs ram memory upgrade
£265.49
Flexx LX300 NVME SSD Kit for MacBook Pro Late 2013-2015 and MacBook Air Mid 2013-2017
Flexx LX300 NVME SSD Kit for MacBook Pro Late 2013-2015 and MacBook Air Mid 2013-2017
£42.49
OWC Aura Pro X2 SSD Upgrade for MacBook Pro, Air, iMac, Mini & Pro (2013-2019)
OWC Aura Pro X2 SSD Upgrade for MacBook Pro, Air, iMac, Mini & Pro (2013-2019)
£100.00
  • electro-track-order-icon
  • Free Delivery
  • electro-thumb
  • 99% Customers
    Feedback
  • electro-return-icon
  • 30 Days
    Return Policy
  • electro-payment
  • Payment
    Secure System
  • electro-brands-icon
  • Only Best
    Brands
% £-99.49
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current
Transcend

Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 2013 to current

1 review
  • Share
  • Tweet
Product SKU: TS240GJDM850-1
Available:
Only 1 item in stock
1 item in stock
In stock
Pre-order
Out of stock
£99.49
Size
 
 
This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.
Want it delivered by
  • Description
  • Specifications
  • Compatibility
  • Product videos
  • Reviews

Requires macOS 10.13 High Sierra or newer before installation

JetDrive 850
Is your Mac getting sluggish? Transcend's JetDrive 850* SSD utilizes the PCIe™ Gen3.0 interface to unleash next-generation performance, instantly revitalizing your MacBook Pro, MacBook Air, Mac mini, or Mac Pro!

*This model features an SSD and screwdrivers only. For an SSD upgrade kit with enclosure, please refer to the JetDrive 855.

Expand storage in a flash
Upgrading your Mac with a Transcend JetDrive 850 allows you to increase storage capacity to up to 1TB (960GB formatted), ensuring you have plenty of space for your documents, photos, music, and videos.

Feel the need for speed
Transcend's JetDrive 850 utilizes the PCIe™ Gen3 x4 interface paired with the latest 3D NAND flash, resulting in compelling performance of up to 1,600MB/s read and 1,400MB/s write*. Transcend's JetDrive 850 gives you fluid, real-time performance for demanding professional tasks, video editing, or 3D graphics rendering.

*Note: Performance tested with AJA v1.0 / Black Magic v3.1.

  • Gen3 x4 Read up to 1,600MB/s Write up to 1,400MB/s
  • Gen2 x4 Read up to 1,500MB/s Write up to 1,200MB/s

JetDrive Toolbox
Exclusively developed by Transcend, JetDrive Toolbox helps maintain a healthy and efficient SSD by keeping it up-to-date, preventing functional degradation, and predicting problems before they happen. JetDrive Toolbox clearly displays drive information, S.M.A.R.T. status for possible drive failure, health indicators for estimated lifespan, and facilitates firmware upgrades. It can also identify your Mac model to quickly find out which of our Apple products suits your computer. Learn more

Includes

  • JetDrive 850 SSD
  • Screwdrivers (T5 & P5)
  • Upgrading a Mac Pro or Mac mini requires additional screwdrivers.
  • Five-year Limited Warranty
  • Available storage capacity 240GB / 480GB / 960GB
  • Manufacturer part number
    • 240GB - TS240GJDM850
    • 480GB - TS480GJDM850
    • 1TB* - TS960GJDM850
  • Bus Interface NVMe PCIe Gen3 x4
  • Flash Type 3D NAND flash
  • Operating Temperature 0°C (32°F) ~ 60°C (140°F)
  • Read Speed (Max.) up to 1,600 MB/s
  • Write Speed (Max.) up to 1,400 MB/s
  • Tools Yes
  • Form Factor Apple Proprietary 12+16 pin
  • Note
    • Speed may vary due to host hardware, software, usage, and storage capacity.
    • The 1TB native SSD is not compatible with the JetDrive 855 and JetDrive 825’s enclosure as its dimensions are designed larger than other capacities.
    • Requires macOS 10.13 High Sierra or newer before installation
  • Certificate CE/FCC/BSMI/KC/RCM
  • Warranty Five-year Limited Warranty
  • User manual Open PDF
  • Warranty Policy
    • Please click here for more information about the Transcend Warranty Policy.
    • Warranty does not apply when JetDrive Toolbox's wear-out indicator displays 0% within the warranty coverage.
  • MacBook Air:
    • MacBookAir7,2 - A1466 - EMC3178
    • MacBookAir7,2 - A1466 - EMC2925
    • MacBookAir7,1 - A1465 - EMC2924
    • MacBookAir6,2 - A1466 - EMC2632
    • MacBookAir6,1 - A1465 - EMC2631
  • MacBook Pro:
    • MacBookPro12,1 - A1502 - EMC2835
    • MacBookPro11,5 - A1398 - EMC2910
    • MacBookPro11,4 - A1398 - EMC2909
    • MacBookPro11,3 - A1398 - EMC2881
    • MacBookPro11,3 - A1398 - EMC2745
    • MacBookPro11,2 - A1398 - EMC2674
    • MacBookPro11,2 - A1398 - EMC2876
    • MacBookPro11,1 - A1502 - EMC2875
    • MacBookPro11,1 - A1502 - EMC2678
  • Mac Pro:
    • MacPro6,1 - A1481 - EMC2630
  • Mac Mini:
    • MacMini7,1 - A1347 - EMC2840

Customer Reviews

Based on 1 review
Write a review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
A
Anonymous
Transcend JetDrive 850 SSD kit - requires macOS High Sierra or newer for select Apple Mac from 20...

Successfully installed in Air early 2015.
Tried first using time machine but could not mount new drive which was unformatted as I did not buy enclosure, also my internet recovery was Yosemite, not Catalina so instead tried cloning bootable version of existing through usb to external ssd and then cloned back to new transcend ssd.
Took a few hours to do but so far so good, improved disk speed according to black magic disk app and lots more space.

User picture

Related products

OWC

OWC Express 1M2 USB4/Thunderbolt 4 enclosure for NVMe M.2 SSDs - Portable External Storage

OWC Express 1M2 USB4/Thunderbolt enclosure for NVMe M.2 SSDs - Portable External Storage
£120.49
OWC

OWC Envoy Ultra Thunderbolt™ 5 SSD – 6,000 MB/s Portable SSD (2TB/4TB) – Rugged & Fast External Drive

OWC Envoy Ultra Thunderbolt™ 5 SSD – 6,000 MB/s Portable SSD (2TB/4TB) – Rugged & Fast External Drive
£387.49
Select Options
OWC

OWC Envoy Pro 1A USB Enclosure for Apple SSDs (2013-2019 MacBook Pro, iMac, Mac Mini, Mac Pro)

OWC Envoy Pro 1A USB Enclosure For PCIe SSD from Apple Mac 2013 to 2019
£66.49
OWC

OWC Express 1M2 USB4 NVMe SSD – 1TB to 8TB – Mac & PC Compatible

OWC Express 1M2 USB4 NVMe SSD – 1TB to 8TB – Mac & PC Compatible
£243.49
Select Options
OWC

OWC Thunderbolt 5 Hub – Expand Connectivity with 3 Thunderbolt USB-C Ports, USB-A, 120Gb/s Speed, and 140W Charging

OWC Thunderbolt 5 Hub – Expand Connectivity with 3 Thunderbolt USB-C Ports, USB-A, 120Gb/s Speed, and 140W Charging
£200.49
Flexx

Flexx LX300 NVME SSD Kit for MacBook Pro Late 2013-2015 and MacBook Air Mid 2013-2017

Flexx LX300 NVME SSD Kit for MacBook Pro Late 2013-2015 and MacBook Air Mid 2013-2017
£42.49
Select Options
OWC

OWC Aura Pro X2 SSD Upgrade for MacBook Pro, Air, iMac, Mini & Pro (2013-2019)

OWC Aura Pro X2 SSD Upgrade for MacBook Pro, Air, iMac, Mini & Pro (2013-2019)
£100.00
Select Options
OWC

OWC 1867MHZ DDR3 204-Pin SODIMM PC3-14900 ram memory for Retina 5K 27-inch Late 2015 iMac

OWC 1867MHZ DDR3 204-Pin SODIMM PC3-14900 ram memory for Retina 5K 27-inch Late 2015 iMac
£19.49
Select Options
OWC

OWC Thunderbolt 5 (USB-C) Cable – High-Speed Data Transfer and 240W Power Delivery, Available in 30cm, 80cm, and 100cm Lengths

OWC Thunderbolt 5 (USB-C) Cable – High-Speed Data Transfer and 240W Power Delivery, Available in 30cm, 80cm, and 100cm Lengths
£23.00
Select Options
OWC

27-inch iMac 2012-2019 Thermal Fan Sensor & screen Adhesive Strips kit for SSD/HDD Upgrades

27-inch iMac 2012-2019 Thermal Fan Sensor & screen Adhesive Strips kit for SSD/HDD Upgrades
£37.00
Got questions? Call us
0800 195 4072
Follow Us
Policies
  • Privacy Policy
  • Refund Policy
  • Shipping Policy
  • Terms of Service
Company Info
  • Knowledge Base
  • About us
  • Contact Us
  • Blog
Shop
  • Mac Upgrades
  • Memory
  • Storage
  • Docks/Hubs
  • Enclosures
  • PCIe Expansion Cards
  • Adapters
  • Laptop Batteries
  • Tools & Service Kits
  • Peripherals
  • More
© 2025 Flexx International Ltd. All Rights Reserved | Made by Banbridge Website Studio
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa
  • Flexx International Ltd
Product successfully added to your Shopping Cart
Continue shopping View cart